Terms & Questions | Chap 1. Atoms & Mocules

Question 1

Atom

Answer 1

Basic unit of matter with a nuclues composed of Protons,Neutrons and orbiting Electrons.

Question 2

Atomic Mass

Answer 2

Also called Atomic weight is the number of Protons and Neutrons in an Atom.

Question 3

Atomic Number

Answer 3

The number of Protons in an Atom.

Question 4

Covalent Bonds

Answer 4

The sharing of electrons by atoms through a chemical bond. This process usually forms to resembe a Noble Gas, as they have stable Electron Shells.

Question 5

Electron

Answer 5

Negatively charged particle that orbits the the Nucleus of an Atom at the speed of light.

Question 6

Elements

Answer 6

Building block of matter that cannot be broken down to any simpler substances. Elements are made of that Element’s Atom. etc. Au/Gold are made of gold atoms.

Question 7

Energy

Answer 7

Capacity/Ability to do work or cause change.

Question 8

Glucose

Answer 8

A simple sugar mixture with a molecular formula of 6C12H6O.

Question 9

Hydrogen Bonds

Answer 9

Weak electrical bonds between the positive and negative ends of molecules, that together in large qunatity result in a three-dimensional shape that can hold molecules together.

Question 10

Ions

Answer 10

Electrically charged particles formed when and Atom gains or loses Electrons. Ions are neutrally charged having the same amount of Electrons and Protons.

Question 11

Ionic Bond

Answer 11

Chemical bond formed between two Atoms, where one donates an electron. This process creates positively and negatively charged Ions.

Question 12

Isotopes

Answer 12

Elements that have the same Atomic Number (same amount of protons) but contrast in Atomic Mass, due to differing number of Neutrons.

Question 13

Matter

Answer 13

Anything that has mass and occupies space.

Question 14

Molecules

Answer 14

Compounds in which elements are in definite, fixed ratios. Due to either a covalent or ionic bond.

Question 15

Neutron

Answer 15

A neutrally charged particle, located inside the nucleus. Variability of neutrons within elements that have the same protons are termed isotopes.

Question 16

Atomic Nucleus

Answer 16

Sphererical center part of the atom containing protons and neutrons.

Question 17

Polar Covalent Bond

Answer 17

Unequal sharing of Atoms between nonmetal Elements that results in a slightly positive charge in one Atom and negative in the other Atom.

Question 18

Proton

Answer 18

Positively charged particle inside the nucleus with an Atomic Mass Unit of 1.

Question 19

Radioactivity

Answer 19

Decay of an atom to a different element by emitting particles from an unstable nucleus.

Question 20

Which of these is not a subatomic particle?
a. Proton
b. Ion
c. Neutron
d. Electron

Answer 20

b. Ion

Question 21

The outermost electron shell of every Noble Gas element (except Helium) has electrons.
a. 1
b. 2
c. 4
d. 6
e. 8

Answer 21

e. 8

Question 22

An organic molecule is likely to contain all of these elements except.
a. C
b. H
c. O
d. Ne
e. N

Answer 22

d. Ne

Question 23

What kind of Chemical Bond is between Water molecules?
a. Ionic
b. Polar Covalent
c. Nonpolar Covalent
d. Hydrogen

Answer 23

b. Polar Covalent

Question 24

A solution with a pH of 7 has times more H ions than a solution of pH 9.
a. 2
b. 100
c. 1000
d. 9
e. 90

Answer 24

b. 100

Question 25

What type of Chemical Bond is formed when Electrons are shared between Atoms?
a. Ionic
b. Covalent
c. Hydrogen

Answer 25

b. Covalent

Question 26

The type of chemical bond formed when oppositely charged particles are attrached to each other is an
a. Ionic Bond
b. Covalent Bond
c. Hydrogen Bond
d. Wavelengths

Answer 26

a. Ionic

Question 27

Electrons occupy volumes of space known as.
a. Orbitals
b. Nuclei
c. Wavelengths

Answer 27

a. Orbitals

Question 28

Carbon has an Atomic Mass of 6. This means it has?
a. 6 Protons + 6 Neutrons
b. 6 Neutrons + 6 Electrons

Answer 28

a. 6 Protons and Neutrons

Question 29

Each of the isotopes of hydrogen has proton(s).
a. 3
b. 1
c. 2
d. 92
e. 1/2

Answer 29

1 Proton

Question 30

Molecule

Answer 30

A combination of one or more atoms that will have a fixed ratio of its components.