Structure of Atom

Question 1

What are Atoms?

Answer 1

• The smallest particles of an element that can take part in chemical reactions

Question 2

What are atoms like size wise?

Answer 2

• They are too small to see directly

Question 3

What does each atom contain?

Answer 3

• A nucleus

Question 4

Compare the nucleus to the atom

Answer 4

• The nucleus is about 20,000 times smaller than the atom itself

Question 5

What does the nucleus contain?

Answer 5

• Protons and Neutrons

Question 6

Describe the arrangement of electrons

Answer 6

• Electrons are arranged in shells at different distances from the nucleus

Question 7

What do subatomic particles have?

Answer 7

• Very, very small masses and electrical charge

Question 8

Define ‘Relative Mass’

Answer 8

• The mean mass of an atom relative to the mass of an atom of carbon 12, which is assigned a mass of 12.

Question 9

Define ‘Relative Charge’

Answer 9

• The electrical charge of a subatomic particle compared to the electrical charge of a proton