Atomic Structure and Isotopes

Question 1

Describe the nuclear atom.

Answer 1

Nucleus- proton and neutrons

Shells- electrons

Question 2

What is always the same in an atom?

Answer 2

The number of protons and electrons.

Question 3

What is the charge of an electron?

Answer 3

-1

Question 4

What is the charge of a proton?

Answer 4

+1

Question 5

What is the charge of a neutron?

Answer 5

Neutral

Question 6

What is the mass of one proton?

Answer 6

1

Question 7

What is the mass of one neutron?

Answer 7

1

Question 8

What is the mass of one electron?

Answer 8

1/1836

Question 9

What is the overall charge of an atom?

Answer 9

0

Question 10

What is meant by the term “atomic number”?

Answer 10

This is the number of protons (and therefore electrons) in an atom.

Question 11

What is an isotope?

Answer 11

This is an atom of the same element with a different number of neutrons.

Question 12

Do different isotopes of the same element react in the same way?

Answer 12

Yes

Question 13

What type of property is different in isotopes of the same element?

Answer 13

Physical properties may be different.

Question 14

What are cations?

Answer 14

Positive ions.

Question 15

What are anions?

Answer 15

Negative ions.