Structure of Atom

Question 1

What is the ‘Nucleus’ and what does it contain?

Answer 1

• It is the middle of the atom

- Contains protons and neutrons

Question 2

What is the overall charge like of the three?

Answer 2

• Nucleus has an overall positive charge, as protons are positively charged
• Neutrons have no charge

Question 3

Describe the whole mass of the atom

Answer 3

• Whole mass of the atom is concentrated in the nucleus

- Size wise, it is tiny compared to atom as a whole

Question 4

Describe ‘Electrons’

Answer 4

• Move around the nucleus
• Negative charge
• Cover a lot of space as they move around

Question 5

What do neutral atoms have?

Answer 5

• No charge overall

Question 6

What is the pattern between charge on the electrons and charge on protons?

Answer 6

• The charge of the ELECTRONS is the same size as the charge on the PROTONS, but OPPOSITE

Question 7

What is the equation which we need to remember?

Answer 7

• Number of protons = Number of Electrons