Question 1

Who named an indivisible particle "atomos"?

Accepted Answer

Democritus

Answer

Bohr

Answer

Aristotle

Answer

Dalton

Question 2

Who discovered the electron?

Accepted Answer

Thomson

Answer

Rutherford

Answer

Bohr

Answer

Dalton

Question 3

Where did Rutherford believe electrons were located?

Accepted Answer

outside the nucleus held there by the positive charge of the nucleus

Answer

"sprinkled" in the nucleus

Answer

in the nucleus

Answer

inside neutrons

Question 4

Which of the following is true about the current atomic model?

Accepted Answer

all of the above

Answer

electrons orbit the nucleus

Answer

nucleus has the most mass

Answer

the nucleus is positive

Question 5

The nucleus contains __________.

Accepted Answer

protons and neutrons

Answer

protons only

Answer

neutrons and electrons

Answer

electrons and protons

Question 6

The strong force holds the protons in the nucleus together.

Accepted Answer

True

Answer

False

Question 7

What kind of charge do neutrons have?

Accepted Answer

neutral

Answer

positive

Answer

negative

Question 8

Which particle has the least amount of mass?

Accepted Answer

electrons

Answer

protons

Answer

neutrons

Question 9

Which particle is negatively charged?

Accepted Answer

electron

Answer

proton

Answer

neutron

Question 10

Which particle has a positive charge?

Accepted Answer

protons

Answer

neutrons

Answer

electrons

Question 11

Dalton was correct when he said that atoms were indivisible.

Accepted Answer

False

Answer

True

Question 12

Who discovered the nucleus?

Accepted Answer

Rutherford

Answer

Bohr

Answer

Dalton

Answer

Thomson

Question 13

Who believed that electrons orbited the nucleus like planets orbit the sun?

Accepted Answer

Bohr

Answer

Thomson

Answer

Rutherford

Answer

Dalton

Question 14

Where is most of the atom's mass located?

Accepted Answer

in the nucleus

Answer

in the neutrons

Answer

in the electrons

Answer

in the protons

Question 15

The atomic number of an elements tells you how many _____________ there are in the atom.

Accepted Answer

protons

Answer

protons and neutrons

Answer

neutrons

Question 16

An atom is the smallest part of

Accepted Answer

an element

Answer

a mixture

Answer

a cell

Answer

a compound

Question 17

Who had the "plum pudding" model stating the electrons were scattered in a positive substance?

Accepted Answer

Thomson

Answer

Rutherford

Answer

Dalton

Answer

Bohr

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