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Unit 2 Electrons and Atomic Structure

Authored by Stacey Kohler

Chemistry

11th Grade

NGSS covered

Used 25+ times

Unit 2 Electrons and Atomic Structure
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45 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The modern periodic table has the elements arranged in order of increasing__

Atomic Mass
Atomic Number
Atomic charge
Atomic symbol

Answer explanation

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2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Elements in the same group (vertical column) have the same number of:

valence electrons
shells
protons
neutrons

Answer explanation

Media Image

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Elements in the same period (horizontal row) have the same number of:

valence electrons

electron shells/energy levels

protons

neutrons

Answer explanation

Media Image

Tags

NGSS.HS-PS1-1

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is an ion?

An atom with a different number of electrons

An atom with a different number of protons

An atom with a different number of neutrons

An atom with a different number of energy shells

An atom with a different quantum number

Answer explanation

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5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following describes a noble gas?

Has an even number of valence electrons

Has a full valence layer

Any of the 7 diatomic elements

Has equal number of protons and neutrons

Answer explanation

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6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why do we study the Big Bang in chemistry class?

All elements were made in the Big Bang

All light was made in the Big Bang

Because the temperatures at the Big Bang were immense

That's where all hydrogen atoms came from and other atoms were made out of hydrogen atoms

Answer explanation

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Hydrogen and Helium were made in the Big Bang. Lithium through Iron are made in stars through fusion. Cobalt through Uranium are made in supernovas. Elements after Uranium are synthetic and made by humans.

Tags

NGSS.HS-ESS1-2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Which is the correct Lewis dot for C?

D

E

F

G

H

Answer explanation

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