3.2 Atomic Structure

Question 1

What is the relative mass of a proton?

Answer 1

1.000

Question 2

What is the relative mass of a neutron?

Answer 2

1.000

Question 3

What is the relative mass of an electron?

Answer 3

0.0005

Question 4

What is the relative charge of a proton?

Answer 4

+1

Question 5

What is the relative charge of a neutron?

Answer 5

0

Question 6

What is the relative charge of an electron?

Answer 6

-1

Question 7

What is the Atomic Number?

Answer 7

Number of protons

Question 8

What is the Mass Number?

Answer 8

Total number of protons and neutrons

Question 9

Why does the number of protons = number of electrons?

Answer 9

Atoms are neutral

Question 10

Define an isotope?

Answer 10

Atoms with the same number of protons, but a different number of neutrons

Question 11

How to find RAM (Relative Atomic Mass)?

Answer 11

Abundance / 100 X Mass Number

Question 12

What is the row in the periodic table known for?

Answer 12

Period = Number of occupied electron shells

Question 13

What is the column in the periodic table known for?

Answer 13

Group = Number of electrons in the outer shell

Question 14

What do crosses represent on a dot-cross diagram?

Answer 14

Electrons in energy levels