Ch 2 Lec 2 - Atoms & the Atomic Theory

Question 1

Group 1 of periodic table

Answer 1

alkali metals

Question 2

group 2 of periodic table

Answer 2

alkaline earth metals

Question 3

group 7A of periodic table

Answer 3

halogens

Question 4

group 8A of periodic table

Answer 4

noble gases

Question 5

Random break in periodic table are called blank elements

Answer 5

lanthanides

Question 6

the random break in periodic table are called blank elements in the second row

Answer 6

actinides

Question 7

first two groups of elements and then 3A - 8A elements are blank elements

Answer 7

main group elements

Question 8

groups 3 - 12 are called blank

Answer 8

transition metals

Question 9

group 1 elements blank an electron to become blank ion

Answer 9

loses, +

Question 10

Group 2 elements blank electrons to become blank

Answer 10

lose, 2+

Question 11

metals like to blank electrons when forming ions

Answer 11

lose

Question 12

group 13 Aluminum blanks electrons to become blank

Answer 12

loses, 3+

Question 13

Group 16 Oxygen likes to blank electrons to become blank

Answer 13

gain, 2-

Question 14

Group 17 Br likes to blank electrons to become

Answer 14

gain, -

Question 15

an amount of substance that has the same number of atoms/molecules/ions as there are atoms in 12g of pure Carbon-12

Answer 15

mole

Question 16

Avogadro’s number

Answer 16

6.022 x 10^23 atoms/mol

Question 17

grams per mole of an element or compound

Answer 17

Molar Mass (M)

Question 18

atomic mass is expressed in blank in molar mass

Answer 18

grams/mole