Unit 1: Periotic Table & Electron Configuration

Question 1

Periodic means

Answer 1

repeating pattern

Question 2

Periodic Table is really a

Answer 2

Repeating table: where elements which react similarly are grouped together and that reactivity tends to repeat itself.

Question 3

On the periodic table, all of the atoms in the middle block are known as

Answer 3

Transition metals or Transition elements (although they are all metals).

Question 4

On the periodic table, the block that is separated from the rest of the table and put down below is known as

Answer 4

the Inner Transition metals. This block actually belongs in the middle of the normal periodic table

Question 5

The four major groupings on the periodic table

Answer 5

Metals
Non-metals
Metalloids
Noble gases

Question 6

Metalloid properties are similar to both

Answer 6

metals and non metals

Question 7

Properties of metals

Answer 7

malleable (can be hammered into a thin sheet), ductile (can be drawn into a thin wire), lustrous (shiny, reflective), and they conduct Electricity and heat.

Question 8

Properties of nonmetals

Answer 8

tend to be brittle in their solid forms, and poor conductors of both electricity and heat.

Question 9

Properties of metalloids

Answer 9

Topside: nonmetals with some properties of metals
Bottom-side: metals with some properties of nonmetals.

Question 10

the only particles on the surface that interact with the surroundings of an atom are

Answer 10

electrons

Question 11

Valence electrons dictate

Answer 11

how atoms interact with other atoms, which influences physical properties and chemical reactivity of the elements as a whole.

Question 12

Electrons are confined to discrete areas called

Answer 12

orbitals

Question 13

it is natural for each electron to fall into the ___ energy orbital possible

Answer 13

lowest

Question 14

electrons fit into discrete energy levels known as

Answer 14

shells

Question 15

Shells contain

Answer 15

subshells

Question 16

Each shell contains a number of

Answer 16

subshells

Question 17

Orbitals are categorized as

Answer 17

s (lowest energy), p, d, or f-type(highest energy)

Question 18

Different atoms react the same when

Answer 18

They have the same number of electrons in the same type of orbital on the atom surface.

Question 19

How many orbitals are on each sub-shell? (S,p,d,f)

Answer 19

The s subshell contains 1 orbital, the p subshell contains 3 orbitals, d contains 5 orbitals, and f contains 7 orbitals.

Question 20

Each orbital can contain

Answer 20

2 electrons per orbital
(ie s(1) can hold 2 electrons, p(3) can hold 6…)

Question 21

the radius of an atom __ as we go down within a group on the periodic table

Answer 21

increases

Question 22

the atomic radius tends to __ as we move across a row in the periodic table

Answer 22

decrease

Question 23

ionization energy of an atom

Answer 23

The energy required to remove an electron from an atom

Question 24

electron affinity

Answer 24

The energy released when an atom gains an electron

Question 25

Ionization energy and electron affinity tend to

Answer 25

increase going across a row in the periodic table and to decrease going down a column.