The Atom

Question 1

Electron

Answer 1

This small particle of an atom carries a negative charge.

Question 2

Nucleus

Answer 2

Made up of the proton and neutrons, this part of the atom contains nearly all the mass of the atom

Question 3

Neutron

Answer 3

This small particle of an atom carries a neutral charge

Question 4

Electron orbit

Answer 4

This refers to the travel of electrons around the nucleus of the atom

Question 5

Proton

Answer 5

This small particle of an atom carries a positive charge

Question 6

The smallest unit of an element

Answer 6

Atom

Question 7

An atom that has become charged by gaining or losing electrons

Answer 7

Ion

Question 8

Atom that has the same number protons but different number of neutrons.

Answer 8

Isotope

Question 9

The number of protons in the nucleus of an atom

Answer 9

Atomic number

Question 10

The total number of protons and neutrons in the nucleus of an atom

Answer 10

Mass number

Question 11

The part of the atom contains protons and neutrons

Answer 11

Nucleus

Question 12

An area around the nucleus where electrons are likely to be found

Answer 12

Orbital

Question 13

Greek philosopher who invented the concept of the atom

Answer 13

Democritus

Question 14

Scientist who discovered the electron

Answer 14

Thomson

Question 15

Scientist who discovered the nucleus of an atom

Answer 15

Rutherford

Question 16

Scientist who discovered electron energy levels

Answer 16

Bohr

Question 17

One particular type of atom, and it cannot be broken down into a simpler substance

Answer 17

Element