which of the following elements is the smallest between phosphorus chlorine sulfur and silicon

Answers

Answer 1

Answer:

The atomic radius of elements are used to estimate the sizes of elements. The atomic radius is taken as half of the inter-nuclear distance between two covalently bonded atoms of non-metallic elements or half of the distance between two nuclei in the solid state of metals.

To solve this problem we will obtain the atomic radius values of the given elements from a standard atomic radius table;

         Si          111 pm

          P          98 pm

         Cl          79 pm

           S           87pm

pm = picometer

We see that chlorine has the least atomic radius

Explanation:


Related Questions

7. Aluminum, iron, copper, and oxygen are all examples of which of the following?​

Answers

Answer:

Explanation:

Elements

SOMEONE HELP ME PLS!!!!

Answers

The answer is B. 4.5 N

Which of the following pictures correctly show the structure of the H+ ion? Click on the picture to see each choice.

Answers

Answer: The answer is the one with the letter P in the red circle.

Explanation:

Answer:

this

Explanation:

because

Given these ions, when they combine what is their formula? *
K1+
Se2-

Answers

Answer:

KSE+1

Explanation:

HAVE A LLOK AND U WILL SEEE IT

__NaCI + __F2=__NaF + __CI2

Answers

I think 2nacI +f2 =2Na CI2

Answer:

2 NaCl 2   +   F2  =  2NaF  +  2Cl2

What occurs when water droplets in the atmosphere become heavier than the air surrounding them can hold? A. fog B. clouds C. lightning D. precipitation

Answers

Answer:

D. precipitation

Explanation:

When this occurs it causes precipitation, also known as rainfall. This is all part of the water cycle. Heat from the sun heats up the water on land to the point where it evaporates and accumulates and condenses in order to form clouds. Then as mentioned in this question the water droplets in the atmosphere become so heavy that the air cannot hold them and they drop in liquid form back down to the Earth until the process is repeated.

Answer:

D. Precipitation

Explanation:

The answer on Study Island is...

D. Precipitation

Students combined baking soda and vinegar to demonstrate a chemical reaction. What indicates a chemical reaction has occurred?

Answers

Answer:

How you know a chemical reaction occurs is by odor, energy change, gas bubbles, precipitate formation and color change. Most of which are included in this experiment.

Explanation:

The densities of various substances are listed in the chart. All of these substances have the same
volume of 2 mL. Which object has the greater mass?

Answers

Answer:

The object with the greatest density

Explanation:

The object that will have the greatest mass from the given choices is the one with greatest density.

Density is the mass per unit volume of a substance;

  Density = [tex]\frac{mass}{volume}[/tex]  

We can see that density is directly proportional to the mass and inversely proportional to the volume.

The more the mass and the lesser the volume, the higher the density.

So, since the volume is the same, and mass is directly proportional to density, the object having the highest density will have the greatest mass.

How many molecules are in 0.75 moles of water (H2O)

Answers

Answer:

The answer is 4.52 × 10²³ molecules

Explanation:

The number of water molecules can be found by using the formula

N = n × L

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

N = 0.75 × 6.02 × 10²³

We have the final answer as

4.52 × 10²³ molecules

Hope this helps you


Which of the following is a covalent compound?
A BaCl2
(B) CHO
c) LiOH
D KNO3

Answers

Answer:

(B) CHO

Explanation:

A covalent bond is a bond type usually formed between non-metals that have little to no electronegativity differences between them.

Bonds between metals and non-metals are usually ionic in nature. All the other given choices are ionic and a combination of covalent bond.

CHO contains non-metals that are electronegative. There will be sharing of electrons between these atomic species and this will lead to a covalent bond.

cats or dogs...? I need to know. V.S. ​

Answers

Answer:

I like both but if I have to choose one then it would be dogs

Explanation:

What drives an electrolytic cell?
A. A spontaneous redox reaction
O B. Electrolytic solutions
O C. An external voltage source
D. A salt bridge filled with ions

Answers

Answer:

C. An external voltage source

Explanation:

An electrolytic cell converts electrical energy from an external voltage source into chemical energy that drives a reaction.

The external voltage source is usually a battery. This energy form generated from the battery helps to drive chemical reactions.

The process involves the decomposition of an ionic compound by means of current passed into the aqueous or molten form of the compound through conductors known as electrodes.

Answer:

C. external voltage source

Explanation:

Just took the quiz

CAN SOMEBODY HELP WE SUMMERIZE THIS SMALL ARTICLE, WILL GIVE BRAINLIST!! :D


Homeostasis is a term that is used to both describe the survival of organisms in an ecosystem and to describe the successful survival of cells inside of an organism. Organisms and populations of organisms can maintain homeostasis in an environment when they have a steady level of births and deaths. It is similar to the idea of equilibrium. When discussing the internal workings of an organism, homeostasis describes an environment that supports the survival of cells. All of your body's systems work together maintain homeostasis inside of your body. Homeostasis is achieved by making sure the temperature, pH (acidity), and oxygen levels (and many other factors) are set just right for your cells to survive. Homeostasis levels are different for each species. A stimulus (plural: Stimuli) are things that cause an organism to perform an activity or start a reaction. The reactions or responses are what occur in response to the stimuli like vomiting or having a fever.

Answers

Quick summary:

Homeostasis describes an environment that supports the survival of cells. It is achieved by making sure the temperature, pH (acidity), and oxygen levels (and many other factors) are set just right. All of your body's systems work together to maintain homeostasis inside your body.

key sentences:

-Homeostasis is a term that is used to both describe the survival of organisms in an ecosystem and to describe the successful survival of cells inside of an organism.

-Organisms and populations of organisms can maintain homeostasis in an environment when they have a steady level of births and deaths.

-It is similar to the idea of equilibrium.

-All of your body's systems work together maintain homeostasis inside of your body.

-Homeostasis is achieved by making sure the temperature, pH (acidity), and oxygen levels (and many other factors) are set just right for your cells to survive.

Summary paraphrased a bit: (Might not 100% make sense grammatically, but it can be a decent guide)

Homeostasis describes an environment  which promotes cell survival.  It is done by ensuring that the levels of temperature ,  pH (acidity), and oxygen (and several other variables) are set just right.  To maintain homeostasis within your body,  all of your body's systems work together.

Organisms that use light energy from the sun to produce food are called autotrophs. Organisms that CANNOT use the sun’s energy to make food are called heterotrophs.
True or False

Answers

The Answer :

-True

:) hope i helped

I need help finding the formulas of these ionic compounds

Lithium Phosphide
Cesium Nitride
Potassium Iodide
Barium Fluoride
Rubidium Nitride
Barium Oxide

Explanation please if you can <3​ I will give brainliest and rate 5 stars.

Answers

Li3PO4
Cs3N
KL
BaF2
BaO
Reaction of. An acid and a base so it consists of an cation and anion so then you take the name of the anion and then the name of the cation take the atomic symbols and depending on the group it’s in add the numbers ? I think x

How many liters is equal to 2,000 mL

Answers

Answer:

2L

Explanation:

Answer:

2 Liters is equal to 2,000 mL

Explanation:

In one liter, there is 1,000 milliliters. Therefore, 2 liters is equal to 2,000 milliliters.

Hope this helped!

Describe as fully as you can what happens when magnesium reacts with iodine to make magnesium

Answers

Answer:

I think the Magnesium loses 2 electrons and forms a Mg2+ ion. Iodine gains 1 electron and forms an I- ion

The____focuses light the pupil takes in and changes shape too focus.
A.Lens
B.Sclera
C.Eye
D.Retina

Answers

D retina! (Correct me if I’m wrong)
A - lens

When you are looking at a near object, the lens needs to become more rounded at the central surface in order to focus the light rays. This ability to change focus for close-up objects is called accommodation. ... The ability of the eye to change the shape of its lens and its focus is known as accommodation.

Which of the following compounds, when added to a solution of ammonium nitrate, will result in the formation of a buffer solution?

ammonia
nitric acid
sodium nitrate
ammonium nitrate

Answers

Answer:

nitric acid

Explanation:

couse it mix well so that we can create them

From the images, what can you infer about the wings of the bat and the butterfly? A. They have a similar structure but perform a different function. B. They have a similar structure and perform a similar function. C. They have a different structure and perform a different function. D. They have a different structure but perform a similar function.

Answers

Answer:

D. They have a different structure but perform a similar function.

Explanation:

They are different shaped wings but both used to fly

Answer:

answer is D

Explanation:

D : They have a different structure but perform a similar function.

I mean, its obvious, they both have a different shape and structure but still perform the same functions or actions ( they both fly ).

also, i took the test..

Thank you for taking the time to read, have a great day!

What is produced during the replacement reaction of Cu(NO3) and zn

Answers

Answer:

Cu, Zn(NO3)2

Explanation:

Zn is more reactive than Cu, so Cu will be displaced (replaced) in the reaction above.

Answer:

actually it is...

Explanation:

Zn (NO3)2 +Cu

Someone please help will mark as brainliest

Answers

I think it’s a not for sure

Answer: They heated the water

Explanation:

The hotter the water was the quicker the sugar dissolved

Animals have to eat other things to get their food, but plants can make it themselves.

A. producers

B. glucose

C. chloroplast

D. consumers

Answers

A is the correct answer

Plants are producers of their own energy through the process of photosynthesis.
All plants perform photosynthesis form huge trees to small small flowers. Photosynthesis requires sunlight, water, and carbon dioxide in order to create glucose (energy) and oxygen.

Please help this is my chemistry work

Answers

It’s deceleration hope that helps!
It’s it’s deceleration!! I hope it helps :) have a blessed day :)

A soccer ball was kicked. It had the mass of 0.42 kg and accelerated at 25m/s². What was the force?

Answers

Answer:

The answer is 10.5 N

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

from the question we have

force = 0.42 × 25

We have the final answer as

10.5 N

Hope this helps you

What made Mendeleev certain that he should leave gaps in his table?

Answers

Answer:

Mendeleev left gaps in his periodic table because he knew that these elements existed, but had not yet been discovered. He believed that the elements would be eventually found and would fit perfectly into the gaps. Two such elements are Germanium and Gallium.

Explanation:

what is the simplified definition of osmosis?

Answers

Answer:

Movement of water through a living cell

Explanation:

movement of a solvent (such as water) through a semipermeable membrane (as of a living cell) into a solution of higher solute concentration that tends to equalize the concentrations of solute on the two sides of the membrane.

- Merriam Webster

Answer:

Movement of a solvent through a semipermeable membrane into a solution of higher solute concentration that tends to equalize the concentrations of solute on the two sides of the membrane.

Hope this helps!!

CAN SOMEONE PLEASE PLEASE PLEASE HELP ME, What is the mass of a carbon atom with 8 electrons and 9 neutrons?

Answers

Isotopic notation includes the atomic number and the mass number. 8 17 This isotope of oxygen has 8 protons (atomic number), 8 electrons and 9 neutrons. (Recall that mass number is the total of protons and neutrons. ) Isotopes are also often written as C-12 C-13 C-14 The number is the mass number.

does anyone know this??

Answers

Answer:

9 moles of N2

Explanation:

Well first you balance the equation which would be N2+3 H2>2 NH3. But you need 18 miles of NH3 so you would just replace the 2 moles of NH3 with 18 and balance the rest of the equation from there. And you would get 9 N2 + 27 H2>18 NH3

What do you notice about the relationship between the force strength and the size of the velocity change?

Answers

Answer:

a mass is constant during -free-weight training,a greater impulse will result in greater velocity.therefore as a generation of force greater than weight of the resistance increases.

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