
12 Week Key Terms Reteach Tutorial

Quiz
•
Science
•
9th Grade
•
Medium
+1
Standards-aligned
CINDY RIGSBY
Used 1+ times
FREE Resource
30 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the atomic number of an element?
The number of protons in an atom
The number of neutrons in an atom
The number of electrons in an atom
The sum of protons and neutrons in an atom
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a chemical property?
Color
Density
Reactivity with acid
Melting point
Tags
NGSS.MS-PS1-5
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calculate the average atomic mass of an element with two isotopes: one with a mass of 10 amu and 20% abundance, and another with a mass of 11 amu and 80% abundance.
10.2 amu
10.8 amu
11.0 amu
10.5 amu
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which electron configuration represents a noble gas?
Tags
NGSS.HS-PS1-1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the mass number of an atom with 15 protons, 16 neutrons, and 15 electrons?
30
31
32
33
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following elements is an alkali metal?
Calcium
Sodium
Aluminum
Chlorine
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Explain why noble gases are generally unreactive.
They have a full outer electron shell.
They have high electronegativity.
They have low ionization energy.
They have a high atomic radius.
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