Chemistry Chapter 2.1 and 2.2

Question 1

Down a ________ the ______ changes and across a _______ the ______ changes

Answer 1

Down a group -> energy level (size)

Across a period -> valence electrons

Question 2

Traits of metals, non-metals, and metalloids

Answer 2

Metals - Reactive, Conductive towards left
Non-metals - Non-conductive, non-malleable
Metalloids - Hybrid

Question 3

Why do elements in the same family have the same properties in a reaction

Answer 3

They have the same number of valence electrons.

Question 4

How are the periodic table and the quantum mechanical model related?

Answer 4

There are sections organized for each orbital.

Question 5

Periodic Trend

Answer 5

As we move across or down a family, regular changes occur due to its electron configuration

Question 6

Atomic Size

Answer 6

The distance between the center of the nucleus of an atom and its outermost shell.

Question 7

Electronegativity

Answer 7

The ability of bonded atoms to attract shared electrons to itself

Question 8

Ionization Energy

Answer 8

Minimum amount of energy required to remove an electron from a gaseous atom or ion

Question 9

Electron Affinity

Answer 9

The energy released when an atom gains an electron