Ch 2 Test

Question 1

names of the f orbital groups

Answer 1

lanthanides and actinides

Question 2

C2H3O2

Answer 2

Chemical molecular formula

Question 3

H-O-H

Answer 3

structural formula

Question 4

O-O-O-O

Answer 4

ball & stick model

Question 5

oOo

Answer 5

space saving model

Question 6

force of attraction between oppositely charged ions

Answer 6

electrostatic force

Question 7

prefix rule exceptions

Answer 7

if there is O or A after prefix, drop O or A in the prefix.

Question 8

Dalton’s atomic theory

Answer 8

> atoms of a given element are identical in size, mass, and other properties
all matter is composed of extremely small particles called atoms
atoms cannot be subdivided created or destroyed
atoms of different elements combine in simple whole number rations to form chemical compounds
in chemical reactions, atoms are combined, separated, or rearranged.

Question 9

a chemical compound always contains exactly the same proportion of elements by mass

Answer 9

law of definite proportion

Question 10

J.J. Thomson + model

Answer 10

discovered presence of electrons

plum pudding

Question 11

Rutherford

Answer 11

nucleus is small, dense, and positively charged

Question 12

Robert Millikan

Answer 12

determines the mass of the electron

Question 13

hydrogen with 1 n

Answer 13

deuterium

Question 14

hydrogen with 2 n

Answer 14

tritium

Question 15

hydrogen with 0 n

Answer 15

hydrogen

Question 16

quarks in a proton

Answer 16

2 up, 1 down

Question 17

quarks in a neutron

Answer 17

2 down, 1 up

Question 18

quarks are held together by…

Answer 18

gluons