DAT Periodic Trends

Question 1

group

Answer 1

consists of elements in the same column.

Question 2

elements in the same group contain the same number of what

Answer 2

valence electrons

Question 3

period

Answer 3

elements that occupy the same row

Question 4

elements in the same period share the same what

Answer 4

have the same number of electron
shells.

Question 5

Group 1 elements

Answer 5

(excluding
hydrogen): alkali metals

Question 6

Group 2 elements:

Answer 6

alkaline earth metals

Question 7

Groups 3-12 elements:

Answer 7

transition
metals

Question 8

Groups 13-17 elements:

Answer 8

includes
metalloids, which have a combination of
both metallic and non-metallic
characteristics as highlighted in orange
on the periodic table

Question 9

Group 17 elements:

Answer 9

halogens

Question 10

Group 18 elements:

Answer 10

noble gas

Question 11

what is related to
the number of electrons that an atom loses,
gains, or appears to use when bonding with
another atom.

Answer 11

oxidation state

Question 12

almost all transition metals have what

Answer 12

multiple oxidation states

Question 13

lanthanides

Answer 13

Period 6 inner
transition metals

Question 14

actinides.

Answer 14

Period 7 inner transition metals

Question 15

Transition metal atoms have their valence
electrons in the outermost

Answer 15

d orbital

Question 16

inner transition metal atoms have their valence
electrons in the

Answer 16

f orbital

Question 17

diatomic atoms you
need to know are:

Answer 17

hydrogen, nitrogen, oxygen, fluorine, iodine, chlorine, bromine

Question 18

how to remember diatomic atoms

Answer 18

have no fear of ice cold beer

Question 19

metallic
character on the periodic table increases going
from

Answer 19

right to left across a period and increases
going down a group.

Question 20

metals have what melting and boiling pts

Answer 20

high

Question 21

brittle, dull

Answer 21

nonmetal

Question 22

form basic oxides

Answer 22

metals,

Question 23

form acidic oxides

Answer 23

nonmentals

Question 24

gain e- to form anions

Answer 24

non metals

Question 25

lose e- to form cations

Answer 25

metals

Question 26

malleable, lusterous

Answer 26

metals

Question 27

poor conductor of electricity, heat

Answer 27

nonmetals

Question 28

which nonmetal is liquid at room temp

Answer 28

bromine

Question 29

good conductor of electricity, heat

Answer 29

metal

Question 30

Half the distance between the nuclei of two identical atoms bonded together.

Answer 30

atomic radius

Question 31

atomic radius trend

Answer 31

radius increases from right to left across a period and increases going down a group.

Question 32

why does atomic radius Increases right to left across a period:

Answer 32

the number of protons in an atom decreases. The decreasing number of protons results in a weaker nuclear attraction between the protons and electrons, which results in electron shells being further apart from the nucleus, therefore increasing the radius.

Question 33

why does atomic radius Increases going down a group:

Answer 33

number of electron shells increases. Each additional electron level gets further and further away from the nucleus, which causes the atomic radius to increase.

Question 34

amount of positive charge experienced by an electron.

Answer 34

effective nuclear charge

Question 35

effective nuclear charge trend

Answer 35

increases left to right across a period and increases going up a group.

Question 36

atoms that have an identical number of electrons, but different numbers of protons.

Answer 36

isoelectric series

Question 37

ions that have gained electrons and have more electrons than protons, making them negatively charged.

Answer 37

anions

Question 38

ions that have lost electrons and have more protons than electrons, making them positively charged.

Answer 38

cations

Question 39

do anions or cations have a larger radius

Answer 39

anions, due to inc e- number increasing electron-electron interactions

Question 40

Metals typically form...

Answer 40

cations

Question 41

energy needed to remove an electron from an atom.

Answer 41

ionization energy

Question 42

ionization energy trend

Answer 42

energy increases going from left to right across a period and increases up a group.

Question 43

why does ionization energy Increases left to right across a period:

Answer 43

As the valence shell continues to fill, the electrons become harder to remove (require more energy) due to an increase in effective nuclear charge.

Question 44

amount of energy released when an electron is added to an atom.

Answer 44

electron affinity

Question 45

electron affinity trend

Answer 45

affinity increases going from left to right across a period and increases going up a group.

Question 46

why electron affinity Increases left to right across a period:

Answer 46

as the atom’s valence shell gets filled, there is increased attraction between the nucleus and the electrons of the atom. This creates a stronger affinity for electrons.

Question 47

noble gases electron affinity

Answer 47

negligable

Question 48

The measurement of an atom’s ability to attract electrons in a bond.

Answer 48

electronegativity

Question 49

electronegativity trend

Answer 49

increases going from left to right across a period and increases up a group.what

Question 50

what is the most electronegative atom

Answer 50

flourine

Question 51

noble gasses electronegativity

Answer 51

no en value