Structure Of The Atom (Vocab)

Question 1

Definition of the atom

Answer 1

Smallest particle of an element that still has the element’s properties

Question 2

Define the Electron Cloud

Answer 2

Area surrounding the nucleus of an atom where electrons are likely yo be

Question 3

Define the nucleus

Answer 3

Center of the element (control center)

Question 4

Define a proton

Answer 4

Positive charge in an atom (+)

Question 5

Define electrons

Answer 5

Subatomic particles with a negative charge

Question 6

Define neutrons

Answer 6

Negative charge in the atom (-)

Question 7

Define John Dalton

Answer 7

All matter consists of invisible particles called atoms that cannot be created or destroyed

Question 8

Define JJ Thompson

Answer 8

1897, JJ Thompson discovered the first subatomic particle while researching Cathode Rays
(Plum Pudding Model)

Question 9

Define Ernest Rutherford

Answer 9

Discovered the nuclear us of the atom in 1910

Alpha beam/Gold Foil

Question 10

Define Neils Bohr

Answer 10

Electrons move around the nuclear us only at fixed distance is based on the amount of energy they have

Question 11

Define Mass Number

Answer 11

The total number of protons and neutrons in a nucleus

Question 12

Define Atomic Mass

Answer 12

The number of protons in the nucleus of an atom , determines chemical properties of elements, and the place on the periodic table