Chemistry Unit Test

Chemistry Unit Test

7th Grade

20 Qs

quiz-placeholder

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Chemistry Unit Test

Chemistry Unit Test

Assessment

Quiz

Science

7th Grade

Practice Problem

Easy

NGSS
MS-PS1-1, HS-PS1-1, MS-PS2-3

+1

Standards-aligned

Used 3+ times

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20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Which of the following best describes an electron?


It has a negative charge and about the same mass as a neutron

It has a negative charge and much less mass than a proton

It has no charge and about the same mass as a proton

It has a positive charge and much more mass than a neutron

Tags

NGSS.MS-PS2-3

2.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Which two elements on the periodic table are in the same period?

F and Cl

Be and Ca

Sn and Rb

Li and Ga

3.

LABELLING QUESTION

1 min • 5 pts

Identify the parts of the atomic structure.

a
b
c
d
e
Nucleus
Proton
Electron
Electron Shell
Neutron

Tags

NGSS.MS-PS1-1

4.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

Media Image

A chemist made the table below to record some atomic properties of four elements.

Based on the information in the table, which conclusion about the chemical reactivity of these elements is valid?

Boron is the most reactive because it has the most protons.

Fluorine is the most reactive because it has 7 electrons in the outer shell.

Silicon is the most reactive because it has an equal number of protons and neutrons.

Gallium is the most reactive because it has many more neutrons than protons.

5.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Elements in a ..................have similar chemical properties.  

period
group
row

6.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

The ______________ is the number of protons + neutrons in the nucleus of an atom.

atomic number
net charge
chemical symbol
atomic mass

Tags

NGSS.MS-PS1-1

7.

MATCH QUESTION

1 min • 5 pts

Match the following amu (atomic mass unit) to their subatomic particle

1 amu (+)

Proton

0 amu

Electron

1 amu

Neutron

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