Atomic Structure

Atomic Structure

9th Grade

28 Qs

quiz-placeholder

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Atomic Structure

Atomic Structure

Assessment

Quiz

Science

9th Grade

Practice Problem

Hard

NGSS
MS-PS1-1, MS-PS2-5, MS-PS4-1

+2

Standards-aligned

Created by

Crystal Graves

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28 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

One of the first people to state that matter is made up of atoms was

Democritus

Aristotle

Dalton

Rutherford

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Dalton's model of an atom is best described as

a solar system

a solid sphere

a plum pudding

an electron cloud

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Who provided the first evidence that atoms contain subatomic particles?

Dalton

Rutherford

Thomson

Bohr

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Almost all the mass of an atom is located in its

protons

electrons

electron cloud

nucleus

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An electron is a particle with

a negative charge, found in the nucleus

a positive charge, found in the nucleus

no charge, found outside the nucleus

a negative charge, found outside the nucleus

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which particle is the least massive?

proton

electron

neutron

nucleus

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

All atoms of an element have the same

mass number

number of isotopes

atomic number

number of neutrons

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