Atomic Structure

Question 1

What is the radius of an atom?

Answer 1

• 1 x 10^-10

Question 2

What is the energy of the energy levels like?

Answer 2

• Energy shells which are further away from the nuclues are at a higher energy than the energy shells which are closer to the nucleus.

Question 3

What happens when atoms absorb electromagnetic radiation?

Answer 3

• When atoms absorb electromagnetic radiation:
• An electron can move from a lower energy level to a higher energy level.
• Atom can now emit electromagnetic radiation and electron returns back to the lower energy shell.

Question 4

What is a isotope?

Answer 4

• Atoms of the same element that have a different number of nuetrons.

Question 5

What is a ion?

Answer 5

• An atom with an overall charge.

- Either positive or negative depending on whether it has lost or gain electrons.