Lab

Question 0

Atoms can be combined to

Answer 0

Form millions of kinds of molecules

Question 1

Element

Answer 1

Mater consisting of One kind of atom

Question 2

Compounds

Answer 2

Composed of one type of molecules

Question 3

Orbitals

Answer 3

Negatively charged electrons moving around outside the nucleus in a specific region

Question 4

Electrons orbit around nucleus bc

Answer 4

Opposite charges attract

Electrons move bc they repel eachother

Question 5

Propeller and spherical

Answer 5

Orbitals

Based on energy level

Question 6

Energy levels

Answer 6

Single s (1s) max of 2 electrons
2s max 2
2p xyz max 6
3s max 2
3p max 6 xyz
4s max 2

Question 7

(-) (+)

Answer 7

Electrons gained / lost

Question 8

Covalent bond

Answer 8

2 bond holds atoms together to form molecules : sharing

Question 9

Carbon bonding

Nitrogen bonding

Answer 9

Always 4 bonds
Always 3 bonds
Oxygen 2
Hydrogen 1

Question 10

Acid

Answer 10

Release hydrogen ions (H+) when dissolved in water

Question 11

Hydrogen ions

Answer 11

atom that lost electrons

Question 12

Bases

Answer 12

Remove hydrogen ions OH-
Release OH-
Or take up H+

Question 13

ph scale

Answer 13

Measure of number of hydrogen ions

Question 14

7
7-
7+

Answer 14

Neutral
Acid
Basic

Question 15

Bromthymol blue

Answer 15

Change in color when mixed with acid yellow
Base blue
Neutral green
Acid indicator

Question 16

2H2+O2. 2h2O

Answer 16

Reactant vs product

Number of atoms

Question 17

Ionic vs colvant

Answer 17

Ionic take electrons
Colvant shares
Ionic bonds are possibly charge or negatively charged

Question 18

Atomic mass number and column

Answer 18

Atomic #
Atomic mass
Column valence electrons