Structure Of The Atom

Question 1

What makes up and atom?

Answer 1

Nucleus - protons & neutrons
Shells - electrons

Question 2

Iodine is in group 7 - How many electrons are in its outer shell?

Answer 2

7

Question 3

Silicon is in group 4- How many electrons are in its outer shell?

Answer 3

4

Question 4

Xenon is in group 0 - How many electrons are in its outer shell?

Answer 4

8

Question 5

What is a proton’s relative charge?

Answer 5

+1

Question 6

What is a neutrons’s relative charge?

Answer 6

0

Question 7

What is an electron’s relative charge?

Answer 7

-1

Question 8

What do atoms have no overall charge?

Answer 8

Everything cancels each other out

Question 9

True or false: The number of protons is always the sane as the number of electrons.

Answer 9

True

Question 10

What is the atomic number of an element?

Answer 10

The number of protons in the nucleus of an atom

Question 11

What is the mass number of an element?

Answer 11

The sum of the number of protons and neutrons in the atoms

Question 12

How do you calculate the number of neutrons in an element?

Answer 12

Subtract the atomic number from the mass number