chem 4

Question 1

periodic law

Answer 1

chemicals are arranged in increasing atomic #, characteristics repeat after certain periods

Question 2

group

Answer 2

vertical columns of PT

Question 3

periods

Answer 3

horizontal rows of PT

Question 4

transitions metals

Answer 4

large block in middle of table (groups 3-12)

Question 5

metals

Answer 5

all elements that lose electrons

Question 6

alkali metals

Answer 6

elements in group 1

Question 7

alkaline earth metals

Answer 7

all elements in group 2

Question 8

nonmetals

Answer 8

between metalloids and inert gasses

Question 9

halogen

Answer 9

group 17; highly reactive

Question 10

noble gas

Answer 10

group 18; nonreactive

Question 11

metalloid

Answer 11

diagonal; from boron to astatine

Question 12

ion

Answer 12

element that doesn’t have equal protons and electrons

Question 13

cation

Answer 13

positive charge ion

Question 14

anion

Answer 14

neg. charge ion

Question 15

ionization energy

Answer 15

energy required to remove outermost electron

Question 16

octet rule

Answer 16

atoms with eight valence electrons are very stable b/c their outermost shell is full

Question 17

electroactivity

Answer 17

strength the nucleus has on the electrons

Question 18

what increases ionization energy in pt

Answer 18

up and further to right