The Particle model

Question 1

What is the charge of an atoms nucleus?

Answer 1

Positive

Question 2

In what environment would the relative mass of an atom change?

Answer 2

It is constant across all environments

Question 3

Sub atomic particles of an atom

Answer 3

Electron, proton, neutron

Question 4

What happens when atoms absorb electromagnetic radiation?

Answer 4

Electrons move to a higher energy level further away from the nucleus

Question 5

What can be emitted by atoms to change the electron arrangement in an atom?

Answer 5

Radiation

Question 6

Who discovered the nucleus?

Answer 6

Ernest Rutherford

Question 7

What are the units for density?

Answer 7

g/cm^3

Question 8

Specific heat capacity

Answer 8

Amount of energy needed to increase the temperature of 1kg of that substance by 1 degree

Question 9

What is another term for melting point?

Answer 9

Fusion temperature

Question 10

What happens to the energy supplied during a change of state at both the melting and boiling points?

Answer 10

Kinetic energy remains constant while potential energy increases

Question 11

Energy change for energy change of state

Answer 11

energy = mass x specific latent heat

Question 12

Units for latent heat of vaporisation

Answer 12

J/kg

Question 13

Momentum equation

Answer 13

mass x velocity

Question 14

Density equation

Answer 14

p = m/v

Question 15

Latent heat

Answer 15

E = mL