Electron shells

Question 1

What is a shell made up of?

Answer 1

sub-shells and orbitals

Question 2

What is the alternative name for shell?

Answer 2

energy level

Question 3

How many electrons can an orbital hold maximum?

Answer 3

2

Question 4

What shape is an s-shell?

Answer 4

spherical

Question 5

What shapes are a p-shell?

Answer 5

an infinity sign on the x-axis, y-axis and diagonal

Question 6

What is in the 1st shell?

Answer 6

1 s-orbital

1 s-sub-shell

Question 7

What is in the 2nd shell?

Answer 7

1 s-orbital
1 s-sub-shell
3 p-orbital
1 p-sub-shell

Question 8

What is in the 3rd shell?

Answer 8

1 s-orbital
1 s-sub-shell
3 p-orbital
1 p-sub-shell
5 d - orbital
1 d- sub-shell

Question 9

What is electronegativity?

Answer 9

The power or ability of an atom to attract a shared pair of electrons in a covalent towards itself

Question 10

What is the effect on electronegativity when you go across the period?

Answer 10

The electronegativity increases

Question 11

What is the effect on electronegativity when you go down the group?

Answer 11

They electronegativity decreases

Question 12

Why does the change happen to electronegativity when you go across the period?

Answer 12

• The positive charge in the nucleus charge increases and there isn’t any significant change in the shielding
• The radius of the atom gets smaller

Question 13

Why does the change happen to electronegativity when you go down a group?

Answer 13

-The nucleus charge increases but there is a large change in the shielding so the electrostatic attraction is smaller