1.2 Atoms and the Periodic Table

Question 1

Atomic Mass

Answer 1

Total mass of protons, neutrons, and electrons

Question 2

Atomic Nucleus

Answer 2

Postive center of the atom

Question 3

Atomic Number

Answer 3

Number of protons in the nucleus

Question 4

Chemical Bond

Answer 4

Force that holds atoms together in a compound

Question 5

Covalent Bond

Answer 5

Electron pairs are shared to form a bond

Question 6

Energy level

Answer 6

Shell or orbital an electron is located

Question 7

Electron

Answer 7

Stbale, negativelt charged subatomic partice

Question 8

Electron Affinity

Answer 8

Measure of an atoms desire to fill it’s outer shell

Question 9

Groups

Answer 9

Vertical columns on periodic table

Question 10

Periods

Answer 10

Horizontal columns on periodic table

Question 11

Ion

Answer 11

Has a different number of protons than electrons and has a net electrical charge

Question 12

Ionic Bond

Answer 12

Atom gives/receives electrons to form bonds

Question 13

Ionization Energy

Answer 13

Energy required to remove an electron from an atom

Question 14

Isotopes

Answer 14

Same number of protons; different number of nuetrons

Question 15

Metal

Answer 15

Conductor, luster, malleable
readily loses an electron

Question 16

Metalloid

Answer 16

Shares metallic and nonmetallic properties

Question 17

Neutron

Answer 17

Net neutral charge
amu of 1

Question 18

Nonmetal

Answer 18

Gains electrons to form anions

Question 19

Periodic Law

Answer 19

States that properties of elements recur in a pattern based on periodic table

Question 20

Proton

Answer 20

Positive, amu of 1

Question 21

Representive Element

Answer 21

All of the inner shells are complete but the outer shells are not

Question 22

Stable isotopes

Answer 22

Different weights that are found and decay naturally

Question 23

Transition Elements

Answer 23

Elements that have an incomplete d sub-shell

Question 24

Valence Electron

Answer 24

Outermost electron that participates in bond formation

Question 25

How do we figure the number of neutrons?

Answer 25

Atomic mass minus atomic number

Question 26

What is the name of the Group A and Group B elements?

Answer 26

Representative and Transition elements

Question 27

Which elements tend to form cations?

Answer 27

Metallic elements

Question 28

Which elements tend to form anions?

Answer 28

Nonmetallic elements

Question 29

What is special about the way transition elements form ions?

Answer 29

They tend to have more than one stable ion depending on what they react with

Question 30

Are Cations bigger or smaller than the parent atom?

Answer 30

Smaller due to more mass to pull in electrons

Question 31

What holds ions together?

Answer 31

The Electrostatic Force

Question 32

How are ions formed?

Answer 32

Through the transfer of electrons

Question 33

How are covalent bonds made?

Answer 33

Non-metal to non-metal/diatomic
electron sharing

Question 34

What are polar covalent bonds and how are they determined?

Answer 34

Uneqeal sharing of electrons
Electronegativity

Question 35

What is Electronegativity?

Answer 35

The ability of an atom to attract electrons in bonds

Question 36

What are Reactants?

Answer 36

The starting materials that undergo change in a reaction

Question 37

What are Products?

Answer 37

substances produced by a chemical reaction