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Atomic Structure and Periodic Table

Authored by Jaime Villarreal

Chemistry

12th Grade

NGSS covered

Used 10+ times

Atomic Structure and Periodic Table
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17 questions

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1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

How many neutrons in Carbon-14?

6
7
14
8

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Media Image

What do these isotopes of carbon all have in common?

neutrons & mass number
atomic number and neutrons
atomic number and electrons
protons, atomic number, and mass number

Tags

NGSS.HS-PS1-8

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

What quantities vary between isotopes of an element?

protons, electrons, and atomic mass
protons, electrons, and atomic number
neutrons and electrons
neutrons and mass number

Tags

NGSS.HS-PS1-8

4.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Calculate the average atomic mass of element X when 34% of element X exists as X-272 and the 66% exists as X-274.

185.64amu
273.32amu
272.68amu
27.33amu

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

An element has two naturally occurring isotopes. One is 10.013 amu and is 19.9% abundant. The other is 11.01 amu and is 80.1% abundant. What is the average atomic mass? What element is it?

9.012, Beryllium
12.011, Carbon
6.941, Lithium
10.812, Boron

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Nitrogen has three occurring isotopes: Nitrogen-13, Nitrogen-14, Nitrogen-15. Which isotope is the most abundant?

Nitrogen-13
Nitrogen-14
Nitrogen-15
Based on the information given, it cannot be determined

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Isotopes are atoms of the same element that have the same number of __________ but different number of __________ . Therefore, isotopes of the same element have different masses. 

protons, neutrons
protons, electrons
neutrons, protons
electrons, protons

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