Unit 2: Atomic Structure

Question 1

What is the smallest unit of matter?

Answer 1

Atom

Question 2

What is the attraction or repelling of forces between matter called?

Answer 2

Electric Charge

Question 3

What is the positively charged subatomic particle that is located in the nucleus called?

Answer 3

Proton

Question 4

What is the negatively charged subatomic particle that is located in the electron cloud called?

Answer 4

Electron

Question 5

What is a pure substance made up of the same types of atoms called?

Answer 5

Element

Question 6

What is the neutrally charged subatomic particle that is located in the nucleus?

Answer 6

Neutron

Question 7

What is the center of the atom where protons are located; therefore, having a positive charge?

Answer 7

Nucleus

Question 8

What os the area around the nucleus that contains electrons; therefore, having a negative charge.

Answer 8

Electron Cloud

Question 9

What is anything that involves the nucleus of an atom called?

Answer 9

Nuclear

Question 10

The number of protons in an atom of an element determines the…

Answer 10

Atomic Number

Question 11

Is = to the number of protons/neutrons in the nucleus of an atom.

Answer 11

Mass number

Question 12

Atoms of the same element will have the same number of protons but different # of neutrons.

Answer 12

Isotope

Question 13

Is the average mass of all the naturally occurring isotopes for a given element.

Answer 13

Average Atomic Mass

Question 14

A property of having an unstable nuclei emitting nuclear radiation.

Answer 14

Radioactive

Question 15

Combining of nucleus of 2 atoms resulting in the formation of a new element.

Answer 15

Fusion

Question 16

Are atoms with extra electrons or missing electrons.
(When you’re missing an electron or 2, you have a positive charge).
(When you have an extra electron or 2, you have a negative charge).

Answer 16

Ion