Unit 9

Question 1

an atom is

Answer 1

the fundamental particle of an element and the smallest unit

Question 2

an element is

Answer 2

any substance that cannot be broken down by ordinary chemical means. It is composed of only one type of atom and is represented by symbols on the periodic table. Example: Oxygen - O

Question 3

a molecule is

Answer 3

a particle made up of two or more atoms chemically joined together. It is the basic unit of a covalent compound. Example: Molecular Oxygen - O2

Question 4

a compound is

Answer 4

a substance formed when two or more atoms of different elements chemically joined together. These elements are chemically bonded. Example: Water - H2O

Question 5

copper in the Bible

Answer 5

represent strength for God’s chosen people

Question 6

gold in the Bible

Answer 6

a symbol of value and riches that sometimes represents the believer

Question 7

iron in the Bible

Answer 7

represent power and dictatorship / the highest level

Question 8

lead in the Bible

Answer 8

represents corruption and weakness / temporary

Question 9

silver in the Bible

Answer 9

biblical currency. Represents Purity and strength

Question 10

sulfur in the Bible

Answer 10

a symbol of God’s judgment mentioned often in the Book of Revelation

Question 11

tin in the Bible

Answer 11

mind in biblical times often used with copper

Question 12

a proton is

Answer 12

a positively charged particle in the nucleus of an atom that is over 1826 times heavier then an electron

Question 13

an electron is

Answer 13

a negatively charged particle located outside the nucleus of an atom that has an extremely small Mass

Question 14

a neutron is

Answer 14

a neutral particle in the nucleus of an atom with the same mass as a proton

Question 15

atomic mass is

Answer 15

total of the masses of particles in an atom measured in atomic mass units

Question 16

atomic number is

Answer 16

the number of protons in the nucleus of an atom. Each element has a specific atomic number

Question 17

mass number is

Answer 17

the sum of the protons and neutrons in the nucleus of an atom

Question 18

Isotopes are

Answer 18

atoms of the same element with different numbers of neutrons in their nuclei (same atomic number, different Mass numbers)

Question 19

families on the periodic table

Answer 19

families are vertical columns on the periodic tables also known as a groups. Family member share properties

Question 20

periods on the periodic table

Answer 20

periods are horizontal rows on the periodic table also known as series.

Question 21

the number and arrangement of electrons is directly related to

Answer 21

where an element is found on the periodic table

Question 22

electrons are found outside the nucleus in an

Answer 22

electron cloud

Question 23

the number of electrons is equal to

Answer 23

the number of protons

Question 24

electrons within clouds have varying amounts of energy so scientists have modeled this by placing electrons in

Answer 24

different energy levels

Question 25

energy levels coincide with the number of

Answer 25

rows on the periodic table

Question 26

the outer level electrons are known as

Answer 26

valence electrons

Question 27

the number of valence electrons determines the

Answer 27

chemical properties of an element