Intro to Bonding review

Atoms are most stable when their outer shell is full or complete.

• true

• false

Why do all bonds form?

• to fill the outermost energy level

• so an atom can be unstable

• so the number of protons and electrons are equal.

• so they can gain neutrons.

Valence electrons are found

• outermost energy level

• innermost energy level

• some where in the electron cloud

According to the Octet Rule, atoms of elements react with each other in order to attain ____ electrons in their outermost energy level or shell. (exceptions are H and He which need only 2!)

• 2

• 4

• 6

• 8

• 10

An atom with 1 valence electron 'needs' a full shell, so it can either gain 7 electrons or lose 1. Which is more likely to occur?

• nothing

• gain 7

• lose 1

Electronegativity is...

• The ability for an atom to ATTRACT electrons in a chemical bond

• the ability of an atom to LOSE electrons

• the energy required to remove an electron from an atom

• the energy required to remove a proton from an atom

How do covalent bonds form?

• by sharing electrons between atoms

• by gaining an electron from another atom

• by losing an electron to another atom

What two types of atoms make a covalent bond?

• 2 nonmetals

• 2 metals

• 1 metal and 1 nonmetal`

Ionic bonds are between

• metals and nonmetals

• 2 metals

• 2 nonmetals

What type of bond contains cations and anions?

• Metallic

• Covalent

• Ionic