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Electron dot diagram, covalent

Authored by Mai Phuong

Chemistry

8th Grade

Electron dot diagram, covalent
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14 questions

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1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What is the difference between elements and compounds?

they are the same

elements make up compounds

compounds make up elements

compounds are made of the same type of atoms while elements are mad up of two or more types of atoms

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If an atom gains an electron, what charge will it have?

positive

negative

neutral

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are valence electrons?

electrons that are in the electron cloud

all the electrons in an atom

electrons in outer shell of an atom

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many total electrons can the 2nd shell or energy level hold?

1

2

8

18

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to the valence electrons of an atom when it is a covalent bond?

transfers electrons

shares electrons

does nothing

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

On the periodic table, carbon is in group 14, period 2. How many valence electrons does carbon have?

6

14

2

4

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A pure substance that contains 2 or more elements that are chemically bonded.

an atom

an ionic bond

organic

a compound

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