Review-Matter

Review-Matter

6th - 8th Grade

•

25 Qs

quiz-placeholder

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Review-Matter

Review-Matter

Assessment

Quiz

•

Chemistry

•

6th - 8th Grade

•

Hard

Created by

Teresa Simmons

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25 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Scandium atoms have an atomic number of 21 and atomic mass of 45. What is NOT true about Scandium atoms?

It has 24 neutrons.

A neutral atoms has 21 protons and 21 electrons.

It has 21 neutrons.

It has 21 protons.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

What is the atomic number of the atom shown in the picture?

13

14

1

27

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

What is NOT true about Iron?

Fe is the chemical symbol.

The atomic mass is 26.

The atomic number is 26.

It has 30 neutrons.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Which element is most likely to be a semi-conductor?

B

F

Li

H

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An atom is neutral if:

it has the same number of protons and neutrons.

it has the same number of protons and electrons.

it has an even number of valence electrons.

it has the same number of electrons and neutrons.

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Elements are made of 

many types of atoms 
the periodic table
one type of atom 
molecules 

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A proton is described as

a positively charged particle in the nucleus

a positively charged particle in the rings of an atom

a neutrally charge particle in the nucleus

a negatively charge particle in the nucleus

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