Assessment (6) Review

Question 1

Which Family of elements has a full valence shell?

Answer 1

Nobel gasses

Question 2

What happens to ionization energy across a period

Answer 2

It increases as you travel from left to right

Question 3

What happens to electrons in the valence shell when an ionic bond forms?

Answer 3

The electrons are taken from one atom and taken by another.

Question 4

Is potassium iodide a molecule?

Answer 4

Ionic compound (1:1 ratio)

Question 5

Physical and Chemical Properties of Sodium Chloride

Answer 5

White crystalline solid

Question 6

Definition of a diatomic molecule and 1 example

Answer 6

Two bonded atoms
Example: O^2

Question 7

What does a triple bond look like?

Answer 7

Three lines, each line represents two electrons.

Question 8

In a polar covalent bond, electrons are not shared equally causing the molecule to have:

Answer 8

slight + and - charges.

Question 9

Why does water have a higher boiling point than Co^2?

Answer 9

(Due to polarity and non- polarity of the molecules)

Question 10

What is the chemical name for LiF?

Answer 10

Lithium Fluoride

Question 11

In naming ionic compounds, to what do Roman Numerals refer?

Answer 11

How many of each element are in the sequence

Question 12

What would be the formula for Beryllium combining with Chlorine?

Answer 12

BeCl^2

Question 13

Why is metallic bonding similar to ionic bonding?

Answer 13

Attraction between opposite charge

Question 14

Metals can be drawn into wires because:

Answer 14

when the metal is struck with a hammer, anions do not change positions

Question 15

When more carbon is added to steel, what happens?

Answer 15

Carbon produces an oxide that keeps the steel from rusting

Question 16

Why do atoms gain or lose electrons?

Answer 16

They are undergoing a lifelong quest to become a noble gas: stable!

Question 17

In Lewis Dot Diagram, what does the symbol for the element represent?

Answer 17

All of the internal electrons, the electrons that are not in the valence shell

Question 18

Which element is most stable?

Answer 18

Neon

Question 19

What do subscripts in a compound indicate?

Answer 19

How many of the atom is required to stabilize the other atom

Question 20

What are the properties of ionic compounds?

Answer 20

Usually crystalline solids

Question 21

Looking at a chemical formula, differentiate between ionic compounds and molecules.

Answer 21

Ionic compounds mostly require metal in the bonding, while the molecules often are made of gases or metalloids

Question 22

Long dashes in a drawing of a compound ( molecule) indicate:

Answer 22

Covalent Bonds

Question 23

Water is polar due to

Answer 23

its bent shape in space as well as the slight polarity of the hydrogen and oxygen atoms.

Question 24

Water has a higher boiling point due to:

Answer 24

the attraction between the water molecules.

Question 25

Can transition metals form more than one type of ion?

Answer 25

Yes

Question 26

What does the prefix “ di” mean?

Answer 26

Two

Question 27

A metallic bond forms between a metal and a nonmetal. T/F?

Answer 27

True

Question 28

The bonds within a metallic lattice are weak. T/F?

Answer 28

True. Metal atom has a weaker attraction to metallic atoms than to other metal atoms.

Question 29

Brass is an alloy of tin and copper. T/F?

Answer 29

True. The mix is stronger than the two alone and creates a distinct muddy red color.

Question 30

Levis sister is a butt. T/F?

Answer 30

TRUE!