Chemical bonds

Question 1

covalent bond

Answer 1

Type of bond made with two or more nonmetals that equally share electrons, no electron movement, no charge

Question 2

ionic bond

Answer 2

Type of bond made between a (low IE) metal and a (high EN) nonmetal, complete transfer of electrons, +/- charge

Question 3

metallic bond

Answer 3

Type of bond made between metals

Question 4

polar covalent bond

Answer 4

Type of bond made between two or more nonmetals that unequally share electrons creating small charges, shifts electrons closer to the atom, partial (+) and partial (-)

Question 5

An atom that loses an electron becomes a

Answer 5

Positive ion

Question 6

Nonmetals

Answer 6

gain electrons becoming negative

Question 7

Metals have

Answer 7

low ionization energy causing them to lose electrons

Question 8

A/An __________ is an ion with a negative (-) charge.

Answer 8

anion

Question 9

Metals __________ electrons to form _____________

Answer 9

lose; cations

Question 10

In an ionic bond, oxygen forms what charge?

Answer 10

2-

Question 11

What types of atoms make up a covalent bond?

Answer 11

nonmetal + nonmetal

Question 12

What happens to the electrons in a covalent bond?

Answer 12

they are shared between atoms

Question 13

Which is true about the atoms in a covalent bond?

Answer 13

they both have high ionization energy and high electronegativity

Question 14

Diatomic molecules are atoms that covalently bond to themselves. Which of the following are diatomic molecules in nature?

Answer 14

F, N, O, I, Cl, Br, H

Question 15

How many electrons are shared in a double bond?

Answer 15

2

Question 16

Ionic Compounds

Answer 16

High melting and boiling points, Soluble in water, and
Conduct electricity when dissolved or melted

Question 17

Covalent Compounds

Answer 17

Tend to be gases, liquids, low-melting solids and weak intermolecular forces

Question 18

How many valence electrons do most elements need in order to be stable?

Answer 18

8

Question 19

How many electrons does Hydrogen need to become stable?

Answer 19

2

Question 20

Magic Number of electrons

Answer 20

same as noble gases because of stability

Question 21

Octet Rule

Answer 21

elements are stable with 8 valence electrons, only applies to things with 8 electrons

Question 22

Duet Rule

Answer 22

elements stable with 2 valence electrons, very small atoms (H, He, Li, Be, B)

Question 23

chemical bond

Answer 23

attractive forces that hold atoms together, formed by valence electrons, no charge

Question 24

non-polar covalent range

Answer 24

0.0-0.2, no shift in electrons

Question 25

polar covalent range

Answer 25

0.3-2.0, electrons closer to one atom, partial charges

Question 26

ionic bond range

Answer 26

2.0-4.0, electrons are transferred from one atom to another, complete charges

Question 27

ionization energy left side

Answer 27

low IE, easy to take electrons, metals, electronegativity: low EN, not going to take electrons

Question 28

ionization energy right side

Answer 28

non-metals, high IE, doesn’t lose electrons, electronegativity: high EN, strong pull on other electrons

Question 29

noble gases

Answer 29

most stable, full of valence shells, has stability

Question 30

ionic

Answer 30

transfers electrons, +/- charge, low IE, high EN, metal + non-metal

Question 31

covalent

Answer 31

shares electrons, no charge, high IE and EN, non-metal + non-metal

Question 32

hydrogen rule

Answer 32

never in the center, has non dots, and only needs one bond

Question 33

polyatomic

Answer 33

don’t always follow expected number bonds, sometimes need 1 double bond but multiple options to put it

Question 34

lone pairs

Answer 34

Valence electrons that are not involved in covalent bond formation

Question 35

single bonds

Answer 35

two atoms held together by one electron pair

Question 36

double bond

Answer 36

two atoms share two pairs of electrons

Question 37

multiple bond

Answer 37

two atoms share two or more pairs of electrons

Question 38

triple bond

Answer 38

two atoms share three pairs of electrons

Question 39

valence shell

Answer 39

The outermost electron occupied shell of an atom, which holds the electrons that are usually involved in bonding.