RCC chem elements

Question 1

Dmitri Mendeleev

Answer 1

Father of chemistry

Question 2

How did Mendeleev organize his periodic table?

Answer 2

Atomic weight

Question 3

How is the table arranged?

Answer 3

Atomic number/protons

Question 4

Arrangement of elements?

Answer 4

7 rows (periods) and 18 columns (groups or families)

Question 5

Period number indicates..

Answer 5

Amount of energy levels occupied in electrons

Question 6

group number identifies…

Answer 6

number of valence electrons

Question 7

Groups aka

Answer 7

families (columns)

Question 8

Same number of valence electrons..

Answer 8

causes chemical similarities

Question 9

3 types of elements

Answer 9

Metals, Non-metals, Metalloids

Question 10

75% of periodic table

Answer 10

metals

Question 11

Location of metals on the periodic table

Answer 11

Left of staircase

Question 12

location of nonmetals on the periodic table

Answer 12

right of staircase

Question 13

location of metalloids

Answer 13

staircase

Question 14

Exceptions

Answer 14

Hydrogen (non-metal) and Al (metal)

Question 15

Metalloids

Answer 15

B, Si, Ge, As, Sb, Te, Po, At

Question 16

metal that isn’t solid

Answer 16

mercury

Question 17

Bromine

Answer 17

non metal, a liquid

Question 18

ductile

Answer 18

capable of being stretched into wires

Question 19

malleable

Answer 19

easy to shape or bend without breaking

Question 20

cations and anions

Answer 20

positive charged ion and negative charged ion

Question 21

ionization energy

Answer 21

amount of energy required to remove a valence electron in an atom

Question 22

electronegativity

Answer 22

measure of attraction the nucleus had for a valence electron in another atom

Question 23

highest electronegativity element

Answer 23

Fluorine, 4.0

Question 24

atomic radius

Answer 24

size of an atom

Question 25

number of protons increases

Answer 25

electrons are more attracted towards the nucleus

Question 26

atomic radii decreases AS

Answer 26

distance ACROSS the table, size decreases

Question 27

atomic radii increases

Answer 27

each successive atom has another occupied energy level, size increases

Question 28

ionization energy increases

Answer 28

when atoms get smaller

Question 29

closer atoms are to the nucleus means

Answer 29

atoms are harder to remove

Question 30

ionization energy decreases when

Answer 30

when atoms get larger, down a group

Question 31

the farther away electrons are from the nucleus...

Answer 31

less attracted and easier to remove

Question 32

electronegativity increases

Answer 32

atoms get smaller

Question 33

when electrons are closer to the nucleus

Answer 33

easier for the atom to attract more electrons

Question 34

electronegativity decreases

Answer 34

atoms get larger

Question 35

when atoms are farther away from the nucleus

Answer 35

it's harder for the atom to attract more electrons

Question 36

radii decreases when

Answer 36

metals lose electrons

Question 37

radii increases when

Answer 37

non-metals gain electron

Question 38

cations

Answer 38

lose their outermost level of electrons

Question 39

most active element groups?

Answer 39

1,2, and 17

Question 40

elements in most active groups?

Answer 40

unbonded

Question 41

group 18

Answer 41

monatomic, found as free elements

Question 42

Alkali metals properties

Answer 42

most active group, reactivity increases going down

Question 43

alkaline earth metals properties

Answer 43

second most active group

Question 44

Halogens

Answer 44

only group with 3 phases

Question 45

Halliades

Answer 45

halogens that are combined with other elements, reactivity increases

Question 46

Group 18

Answer 46

has a complete outer shell, EXPECTATION helium

Question 47

Transition Metals (Groups 3-12)

Answer 47

- filled "d" orbital levels, hard with high melting points EXPECT mercury - multiple oxidation numbers (different positive charges)

Question 48

Transition Metal Solutions

Answer 48

Gives color in solutions