Atomic Structure

Question 1

What has to happen for an atom to become an ion?

Answer 1

When an atom either losses or gains an electron

Question 2

What is a cation?

Answer 2

A positively charged ion

Question 3

What is an anion

Answer 3

A negatively charged ion

Question 4

What did dalton discover?

Answer 4

That all the elements were made up of small particles called atoms

Question 5

What did Rutherford discover?

Answer 5

He made a model which had negative electrons orbiting a positive nucleus

Question 6

What did Chadwick do?

Answer 6

Discovered the neutron

Question 7

What is the atomic number

Answer 7

This is the number of protons in an atom

Question 8

What is the mass number?

Answer 8

This is the total number of protons and neutrons in the nucleus of the atom

Question 9

Protons relative mass, charge and position?

Answer 9

1, +1 and nucleus

Question 10

Neutrons relative mass, charge and position?

Answer 10

1,0 and nucleus

Question 11

Electron relative mass, charge and position?

Answer 11

1/1840 -1 shell

Question 12

What is an isotope?

Answer 12

Isotopes are atoms which have the same number of protons but have a different number of neutrons