Chemistry 1-3

Question 1

What are the seven diatomic elements

Answer 1

H2, N2, O2, F2, Cl2, Br2, I2

Question 2

What is the atomic number of an element?

Answer 2

The number of protons in its nucleus

Question 3

How many electrons are in the s,p,d, and f orbitals?

Answer 3

2,6,10,14

Question 4

What are the properties of metals?

Answer 4

Solid at room temp, shinyy, conduct electricity, maleable, form alloys, in reactions give up electrons

Question 5

What are the properties of non metals

Answer 5

They don’t conduct electricity, tend to accept electrons

Question 6

What are the metaloids

Answer 6

Boron, Silicon, Germanium, Arsenic, Antimony, Tellurium

Question 7

What are the properties of metaloids

Answer 7

Hybrid of metals and non metals, shiny, but don’t conduct electricityy.

Question 8

What column are the Alkaline Earth Metals in?

Answer 8

They are in column 2 and are less reactive as they need to lose 2 electrons.

Question 9

Halogens

Answer 9

Theyy are in the 7 column, highly reactive since they only need to gain 1 electron

Question 10

Noble Gases

Answer 10

Largely unreactive bc have full octet in column 8

Question 11

What is Ionization Energy

Answer 11

How much energy is needed to pull an electron off to another element.

Question 12

When are nuclei stable?

Answer 12

When they have the same or greater number of protons as neutrons. No atom with more than 83 protons and greater atomic mass than 209 are stable.

Question 13

What are Alpha Particles charge?

Answer 13

They are positive and weak they lose 2 protons and 2 neutrons.

Question 14

Which orbital can have more than 8 electrons and where are those elements located?

Answer 14

Elements with a D orbital and in the 3rd or lower row can have more than 8 valence electrons.

Question 15

What is H2SO4

Answer 15

Sulfuric Acid

Question 16

What is HCl

Answer 16

Hydrochloric Acid

Question 17

What is HNO3

Answer 17

Nitric Acid

Question 18

Ionic compounds are always what?

Answer 18

Solid and the strongest of the two types of compounds

Question 19

Molecular Compounds

Answer 19

Share valence electrons

Question 20

Molecular Compounds do not

Answer 20

conduct electricity

Question 21

Tetrahedral shape has what bond angles and how many bonds?

Answer 21

109.5, 4 things attached to central element

Question 22

Trigonal Pyramidal

Answer 22

Has 3 other things attached and a lone pair of electrons, bond angle is 109.5

Question 23

Bent

Answer 23

Has two atoms attached and two lone pairs, bond angle is 109.5

Question 24

Trigonal Planar

Answer 24

Has 3 things attached and a 120 degree bond angle

Question 25

Linear

Answer 25

Have 2 atoms attached and a 180 degree bond angle

Question 26

If Electronegativity difference is less than .5

Answer 26

The bond is nonpolar covalent and most likelyy formed between 2 metals or a non metal and metaloid.

Question 27

If Electronegativity difference is between .5 and 1.9

Answer 27

The bond is polar covalent and most likelyy formed between 2 metals or a non metal and metaloid.

Question 28

If Electronegativity difference is greater than 1.9

Answer 28

The bond is ionic and most likely between a metal and non metal