Chemical Bonds

Multiple Choice

How many valence electrons does Hydrogen Have?

• 1 Valence electron

• 2 Valence electron

• 3 Valence electron

• 4 Valence electron

• 5 Valence electron

Multiple Choice

How many valence electrons does Nitrogen Have?

• 1 Valence electron

• 2 Valence electron

• 3 Valence electron

• 4 Valence electron

• 5 Valence electron

Multiple Choice

How many valence electrons does Sodium Have?

• 1 Valence electron

• 2 Valence electron

• 3 Valence electron

• 4 Valence electron

• 5 Valence electron

Multiple Choice

According to the Octet Rule, atoms of elements react with each other in order to attain ____ electrons in their outermost energy level or shell.

• 2

• 4

• 6

• 8

• 10

Multiple Choice

This atom will

• lose 2 electrons

• gain 2 electrons

• lose 6 electrons

• gain 6 electrons

• do nothing

Multiple Choice

What makes an element an atom (neutral) instead of an ion?

• when there are more electrons than protons

• When there are more protons than electrons

• When the electrons are equal to the protons.

Multiple Choice

Atoms that gain electrons become...

• negatively charged
• positively charged
• remain neutrally charged
• 21

Multiple Choice

Anions have a ________ charge.

• positve

• negative

• neutral

Multiple Choice

Cations have a __________ charge.

• positive

• negative

• neutral

Multiple Choice

How are ionic bonds formed?

• Transfer of electrons
• Sharing of electrons

Multiple Choice

Why do elements bond?

• To be friends
• To create a new element
• To become stable

Multiple Choice

Covalent compounds

• Share electrons
• transfer electrons
• contain a sea of electrons
• conduct electricity

Multiple Choice

Covalent bonds are between...

• Metal and Non-metal
• Non-metal and Non-metal
• Metal and Metal

Multiple Choice

What type of bond contains atoms with "partial" charges?

• Polar Covalent

• Non-Polar Covalent

• Ionic

Multiple Choice

The bond between C and H is non-polar covalent. That means

• there is a pair of electrons shared equally between them

• there is a pair of electrons shared unequally between them

• an electron will be stolen from one and given to the other

Multiple Choice

Which label shows hydrogen bond in between water molecule?

• X

• Y

• Z

Multiple Choice

In a polar covalent bond, electrons are shared ___________.

• equally
• unequally
• between non-metals with similar electronegativities
• between a metal and a non-metal

Multiple Choice

In covalent bonds, electrons are ___________.

• transferred
• gained
• lost
• shared

Multiple Choice

In this Lewis structure, the symbol above F means...

• electrons are being transferred to Fluorine
• electrons are less attracted to F than H
• electrons are more attracted to F than H
• Fluorine has formed a cation