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Valence electrons and configuration

Last updated about 2 years ago

10 questions

Instructions

Formative Generation Completed!

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Question 1

1.

What are valence electrons?

Electrons in the first energy level

Electrons in the last energy level

Protons in the nucleus

Neutrons in the nucleus

Question 2

2.

How many valence electrons does Carbon have?

2

4

6

8

Question 3

3.

Ions are atoms that have lost or gained protons.

True

False

Question 4

4.

Consider an atom which forms an ion with a charge of +1. What has happened to the atom's electrons?

One electron has been gained

One electron has been lost

Two electrons have been lost

Two electrons have been gained

Question 5

5.

How many valence electrons does a Sodium ion have?

0

1

2

8

Question 6

6.

How many valence electrons does Neon have?

2

4

6

8

Question 7

7.

Why do atoms form ions?

Question 8

8.

Which elements will likely form positive ions?

Aluminum

Oxygen

Fluorine

Potassium

Question 9

9.

If an atom loses an electron, what kind of ion does it form?

Positive

Negative

Question 10

10.

How many valence electrons does an Oxygen ion have (after gaining electrons to become stable)?

2

4

6

8