Option C Chemistry

Quiz
•
Science
•
7th Grade
•
Hard
+4
Standards-aligned
Lisa Thompson
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How many protons, neutrons, and electrons are in a neutral nitrogen atom?
7 protons, 14 neutrons, 7 electrons
7 protons, 7 neutrons, 7 electrons
14 protons, 7 neutrons, 7 electrons
7 protons, 7 neutrons, 14 electrons
Tags
NGSS.MS-PS1-1
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What ion will the element Sulfur make?
+2
+6
-6
-2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Melting and Burning are very similar properties. Are they chemical or physical properties?
Melting is chemical and burning is physical.
They're both chemical
Burning is chemical and melting is physical
They're both physical
Tags
NGSS.MS-PS1-4
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How many electrons fill the first 3 shells of an atom?
2, 8, 8
8, 8, 8
2, 8, 18
2, 2, 2
Tags
NGSS.MS-PS1-1
5.
MULTIPLE SELECT QUESTION
1 min • 1 pt
You have two unknown white substances. You know one is an ionic compound and the other is covalent. What tests could you do to determine which is which? (Choose all that apply)
Try melting them - ionic compounds have higher melting points than covalent
Look at them under a microscope - covalent compounds usually form crystal lattices.
Try burning them - covalent compounds usually change the color of the flame
Try dissolving them - ionic compounds usually dissolve better than covalent
Tags
NGSS.MS-PS1-1
NGSS.MS-PS1-2
NGSS.MS-PS1-4
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Why are valence electrons so important?
Valence electrons are the closest to the nucleus
Valence electrons are the only electrons involved in bonding
Valence electrons are the only electrons not involved in bonding
Valence electrons make an atom radioactive
Tags
NGSS.HS-PS1-1
NGSS.HS-PS1-2
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Why do elements bond?
To become stable - to get 8 valence electrons
To become stable - to get 10 valence electrons
To become unstable - to use less energy
To become unstable - to use more energy
Tags
NGSS.MS-PS1-1
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