C1.2 Atomic Structure

Question 1

What is an element?

Answer 1

A substance made of one type of atom

Question 2

What is a compound?

Answer 2

A substance made of two or more chemically bonded elements

Question 3

What is an atom?

Answer 3

A single particle of an element

Question 4

What is the relative charge and mass of a proton?

Answer 4

Relative charge is +1

Relative Mass is 1

Question 5

What is the relative charge and mass of a neutron?

Answer 5

Relative charge is 0/ no charge

Relative mass is 1

Question 6

What is the relative charge and mass of a electron?

Answer 6

Relative charge is -1

Relative Mass is 0.00054/ 0

Question 7

What is the mass number of an element?

Answer 7

The number of protons and neutrons

Question 8

What is the atomic number of an element?

Answer 8

The number of protons, so therefore also electrons

Question 9

What is the average size of the radius of an atom?

Answer 9

10^-10m

Question 10

What is the average size of a nucleus of an atom?

Answer 10

10^15m

Question 11

Which subatomic particle has a mass of 1/2000?

Answer 11

Electrons

Question 12

What are isotopes?

Answer 12

Atoms that have the same number of protons but different number of neutrons

Question 13

What can extra neutrons do to the nucleus?

Answer 13

make it unstable, and radioactive

Question 14

Do isotopes have the same chemical and physical properties?

Answer 14

They have the same chemical properties, as this depends on electronic structure. They have different physical properties as