Average Atomic Mass

Average Atomic Mass

10th - 11th Grade

9 Qs

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chapter 1 quiz 1

chapter 1 quiz 1

10th Grade

10 Qs

Average Atomic Mass

Average Atomic Mass

Assessment

Quiz

Chemistry

10th - 11th Grade

Medium

NGSS
MS-PS1-1

Standards-aligned

Created by

Christopher Rock

Used 6+ times

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9 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

15 mins • 12 pts

Media Image

What is an isotope? 

A charged atom
An atom with different amounts of neutrons
An atom with different amounts of protons
A neutral atom

Tags

NGSS.MS-PS1-1

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Media Image

The photo above shows the isotopic notation for which isotope?

Carbon 12
Carbon 13
Carbon 14
Carbon 15

Tags

NGSS.MS-PS1-1

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Media Image

Different isotopes have...

different masses
different atomic numbers
different electrons
different protons

Tags

NGSS.MS-PS1-1

4.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Media Image

How many neutrons does an Oxygen-19 isotope have?

19
8
11
10

Tags

NGSS.MS-PS1-1

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

24.1% of all the isotopes of a an element have a mass of 75.23 amu, 48.7% have a mass of 74.61 amu, and 27.2% have a mass of 75.20 amu.
What is the average mass of this element?

74.92 amu
24.97 amu
75.01 amu
74.51 amu

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

An isotope has three forms.  30% have a mass of 4 amu, 20% have a mass of 5 amu and 50% have a mass of 3 amu.  Average atomic mass will be closest to

2 amu
3 amu
4 amu
5 amu

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

4.35% of all X atoms have a mass of 39.946 amu. 83.79% have a mass of 41.941 amu, 9.50% have a mass of 42.941 amu, and 2.36% have a mass of 43.939 amu. What is the average atomic mass of atom X?

41.97 amu
42.19 amu
10.43 amu
40.04 amu

Tags

NGSS.MS-PS1-1

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