Atomic Structure

Question 1

Where are the electrons found?

Answer 1

Orbiting the outside of an atom

Question 2

What charge do alpha particles have?

Answer 2

Positive

Question 3

What can stop a alpha particle

Answer 3

A few sheets of paper

Question 4

What charge does a electron have

Answer 4

Negative

Question 5

Where are the neutrons and protons found

Answer 5

In the nucleus

Question 6

What charge does a beta particle have?

Answer 6

Negative

Question 7

What can stop a beta particle

Answer 7

A sheet of aluminium

Question 8

What charge does a nucleus have

Answer 8

Neutral

Question 10

What charge do gamma rays have?

Answer 10

Neutral

Question 11

What charge does a proton have

Answer 11

Positive

Question 12

What is a isotope

Answer 12

Equal numbers of protons but different numbers of of neutrons in their nuclei

Question 13

What is a radioisotope

Answer 13

A radioactive isotope

Question 14

What can stop a gamma ray

Answer 14

Thick layer of concrete or lead

Question 15

There can be lots of different types of one element.

Answer 15

They just have different amounts of neutrons

Question 16

What is a quark?

Answer 16

The stuff that neutrons and protons are made of

Question 17

Mass number =

Answer 17

Protons + neutrons

Question 18

If a atom had one neutron and three protons what would the mass number be?

Answer 18

4

Question 19

Atomic number =

Answer 19

No. Protons

Question 20

If an atom had 3 pro 1 neu 3 elec what atomic number does it have?

Answer 20

3