All categories

3 years ago

How do you think the atomic radii will change as electrons are added to a shell?

2 answers:

6 0

As electrons are added to the valence shell, an extra proton (i.e fundamental, positively charged nuclear particle) is added to the element's nucleus. As electrons add and Z the atomic number increases 1 by 1, nuclear charge WINS, and electronic radii contract.

kirill115 [55]3 years ago

3 0

Answer:

Explanation:

Hope this helps you

Crown me as brainliest:)

You might be interested in

Compute the value of the molar heat capacity at constant volume, CVCV, for CO2CO2 on the assumption that there is no vibrational

katovenus [111]

Answer:

Explanation:

Molar heat capacity at constant volume Cv of a gas = n x .5 R where n is degree of freedom of the gas molecules

CO₂ is a linear molecule , so number of degree of freedom = 3 + 2 = 5

3 is translational and 2 is rotational degree of freedom . There is no vibrational degree of freedom given .

So Cv = 5 / 2 R

= 2.5 R .

4 0

3 years ago

What is the halogen in period 5?? it has six letters

Misha Larkins [42]

Simple,

take a look at your periodic table, if you have it labeled look at the Halogen

Group, it includes: Flourine, Chlorine, Bromine, Iodine, and Astatine.

Now, a period on the periodic table is read from left to right, and goes

down the rows of the periodic table.

Go to Period 5, go all the way to the Halogens, what is there?

Iodine.

Thus, your answer.

8 0

3 years ago

What is the mass of 1.2 x 1023 atoms of arsenic?

Gre4nikov [31]

Answer:

14.93 g

Explanation:

First we convert 1.2 x 10²³ atoms of arsenic (As) into moles, using Avogadro's number:

1.2 x 10²³ atoms ÷ 6.023x10²³ atoms/mol = 0.199 mol As

Then we can calculate the mass of 0.199 moles of arsenic, using its molar mass:

0.199 mol * 74.92 g/mol = 14.93 g

Thus, 1.2x10²³ atoms of arsenic weigh 14.93 grams.

6 0

3 years ago

Water is placed into a sealed jar and has a mass of 22.0 grams. The jar is placed in the freezer and the water turns to ice. The

Serhud [2]

exactly 22.0 grams

because freezing is a physical change not a chemicl change..so nothing is taken away or added

6 0

3 years ago

Which of the following statements is true? Radiation is the transfer of heat between objects which are not touching. An insulato

Licemer1 [7]

Answer:

Radiation is the transfer of heat between objects which are not touching. I think

Explanation:

3 0

2 years ago