Anatomy of an Atom

Question 1

Atom

Answer 1

The smallest unit of matter

Question 2

Contents and charges of an atom

Answer 2

Protons = Positive
Neutrons = None
Electrons = Negative

Question 3

Dalton

Answer 3

Unit of weight used to measure atoms

Question 4

Atomic Number

Answer 4

The amount of protons within an atom

Question 5

Atomic Mass

Answer 5

The weight of an atom (the number of protons and neutrons combined)

Question 6

Isotope

Answer 6

An uneven atom; the number of protons do not equal the number of neutrons

Question 7

Electron Shells

Answer 7

Inner shell, sphere, holds 2 electrons

Outer shell, valence shell, dumbbell, holds 8 electrons

Question 8

Valence electrons

Answer 8

Electrons in the outermost shells

Question 9

Covalent Bond

Answer 9

A bond where two atoms share valence electrons

Question 10

Single Bond

Answer 10

Sharing only one pair of electrons, such as in H-H

Question 11

Double Bond

Answer 11

Sharing two pairs of electrons, such as in O=O

Question 12

Electronegativity

Answer 12

How strongly that atom pulls electrons to itself

Question 13

Polar Covalent Bond

Answer 13

Electrons are shared unequally between atoms

Question 14

Non-polar Covalent Bond

Answer 14

Electrons are shared equally between atoms

Question 15

Ionic bond

Answer 15

Bond between ions

Question 16

Ion

Answer 16

Fully charged atoms; either fully positive or fully negative

Question 17

Cation

Answer 17

Positively charged ion

Question 18

Anion

Answer 18

Negatively charged ion

Question 19

Hydrogen Bonds

Answer 19

Bonds between water molecules and other atoms (mainly electronegative atoms)

Question 20

Van der Waals Interaction

Answer 20

Little forces that allow a gecko to walk up a wall