Atoms And Atomic Models (8th)

Question 1

Mass number

Answer 1

The sum of the protons and neutrons in the nucleus of an Atom

Question 2

Isotopes

Answer 2

Adams with the same number of protons but have different numbers of neutrons

Question 3

Atom model

Answer 3

A representation of an atom (A picture of what the atomic theories explain)

Question 4

Atom

Answer 4

The smallest particle in which an element can be divided and still be the same substance

Question 5

John Dalton

Answer 5

British chemist who developed his atomic theory gathered from observations gathered during his experiments

Question 6

Electron

Answer 6

The negatively charged particles in an Adam that are involved in the formation of chemical bonds

Question 7

Model

Answer 7

May be a diagram, a mental picture, a mathematical statement, or an object that helps explain ideas about the natural world

Question 8

Particle

Answer 8

A tiny piece or part

Question 9

Nucleus

Answer 9

The tiny extremely dense positively charged region in the center of an atom.

Question 10

What kind of particles are in the nucleus?

Answer 10

Protons and neutrons

Question 11

Bohr model

Answer 11

The model of the atom that states that electrons move around the center of the atom’s nucleus in fixed orbit

Question 12

What can the Bohr model also be called?

Answer 12

The planetary model

Question 13

Proton

Answer 13

The positively charged particles in the nucleus