Atomic Structure & Electron Configuration

Question 1

What is the structure of the atom?

Answer 1

A central nucleus composed of protons and neutrons, surrounded by electrons, orbiting in shells

Question 2

What is the relative mass and relative charge of a proton?

Answer 2

Charge = +1
Mass = 0

Question 3

What is the relative mass and relative charge of a neutron?

Answer 3

Charge = 0
Mass = 0
(Think of as neutral neutrons)

Question 4

What is the relative mass and relative charge of an electron?

Answer 4

Charge = -1
Mass = negligible

Question 5

What is the atomic number?

Answer 5

Number of protons that are contained within the nucleus and the number of electrons, is the number underneath

Question 6

What is the mass number?

Answer 6

The sum of protons and neutrons

Question 7

What are isotopes?

Answer 7

Forms of an element that have the same number of protons but different numbers of neutrons

Question 8

What is relative atomic mass?

Answer 8

The total of neutrons + protons

Question 9

How many electrons can you have in each shell?

Answer 9

2,8,8,16

Question 10

What is the relationship between group number and period number with electron arrangement?

Answer 10

Group number = how many electrons are on the outer shell
Period number = How many shells there are