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Elements, Mixtures, Compounds Test

Authored by Abbey L Bellotte

Science

7th Grade

NGSS covered

Used 32+ times

Elements, Mixtures, Compounds Test
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12 questions

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1.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

The atomic number of an element tells you the following. Check all that apply

Electrons

Mass

Neutrons

Protons

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is salt classified as a compound?

It is not, it is a mixture.

It is not, it is an element.

It is two or more elements physically combined.

It is two or more elements chemically bond together.

Tags

NGSS.MS-PS1-1

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you find the number of neutrons an element has?

Neutrons is equal to atomic mass.

Neutrons, protons, and electrons are the same.

Subtract atomic number from atomic mass, but leave mass and answer as a decimal.

Substract atomic number from atomic mass, but round mass and neutrons to the nearest whole number.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If you looked on your periodic table and find a "item" by itself you know it is the following.

element

compound

mixture

you need more information.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

The gray dots outside the nucleus represent what subatomic particle?

atom

electron

neutron

proton

Tags

NGSS.MS-PS1-1

6.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Why is chicken salad classified as a mixture? List all that apply.

It is uniform throughout.

It can be separated by physical means.

It is physically, but not chemically combined.

It's characterics change when bonded together.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Use your periodic table to find the atomic number, protons and electrons of Radon (Rn).

atomic number=86, protons=86, electrons=222

atomic number=222, protons=86, electrons=86

atomic number=86, protons=86, electrons=86

atomic number=222, protons=222, electrons=86

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