Do Now - Average Atomic Mass

Do Now - Average Atomic Mass

9th - 11th Grade

11 Qs

quiz-placeholder

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Do Now - Average Atomic Mass

Do Now - Average Atomic Mass

Assessment

Quiz

Chemistry

9th - 11th Grade

Easy

NGSS
MS-PS1-1, HS-PS1-8, HS-PS1-7

Standards-aligned

Created by

Keiffer Scott

Used 9+ times

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11 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Media Image

What do these isotopes of carbon all have in common?

neutrons & mass number

protons and neutrons

atomic number and average atomic mass

protons and atomic number

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Chlorine has two naturally occurring isotopes, Chlorine-35 and Chlorine-37, the atomic mass of chlorine is 35.45. Which of these two isotopes of chlorine is more abundant?

35Cl

37Cl

Cannot be determined from the information provided.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the mass number defined as?

the number of protons
the number of protons and neutrons
the number of neutrons
the number of protons and electrons

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

which atom has  4 neutrons?

Li-6
Li-7
Li-8
they have the same # of neutrons

Tags

NGSS.MS-PS1-1

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

How many neutrons does the isotope of lithium have?

8
3
4
5

Tags

NGSS.HS-PS1-8

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which isotope of oxygen has 8 neutrons?

O-16

O-17

O-18

O-19

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If an element has isotopes with masses of 10 amu and 11 amu, and the average atomic mass is 10.8 amu, which isotope is more abundant?

10 amu

11 amu

Both are equally abundant

Cannot be determined

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