Ace Unit 4-5

Question 1

What are different types of atoms?

Answer 1

Elements

Question 2

What is the chart on which elements are organized and listed?

Answer 2

Periodic Table

Question 3

What is the number of protons an atom contains?

Answer 3

Atomic Number

Question 4

What are a one or two letters asigned to an element for representation?

Answer 4

Chemical Symbol

Question 5

What is the average mass of a typical atom of that element?

Answer 5

Atomic Mass

Question 6

What is a row of elements across the periodic table?

Answer 6

Period

Question 7

What is a column of of elements in the periodic table?

Answer 7

Group or Family

Question 8

What ocurrs when the number of protons is equal to the number of electrons?

Answer 8

Neutral Element

Question 9

What are atoms of the same element?

Answer 9

Isotopes

Question 10

What is the sum of the number of protons and nuetrons?

Answer 10

Mass Number

Question 11

What is an atom called if it is charged?

Answer 11

ion

Question 12

What is an ion called if it is negativley charged?

Answer 12

Anion

Question 13

What is an ion called if it is positivley charged?

Answer 13

Cation

Question 14

What law states:

Phisical and chemical properties of the elements recur in a systematic and predictable way when the elements are arranged in order of increasing atomic number.

Answer 14

Periodic Law

Question 15

Metal or Nonmetal or Metaloids

Solid at room temperature

except mercury

Answer 15

Metal

Question 16

Metal or Nonmetal or Metaloids

It is ductile

(can be pulled into thin wire)

Answer 16

Metal

Question 17

Metal or Nonmetal or Metaloids

High luster

Answer 17

Metal

Question 18

Metal or Nonmetal or Metaloids

Good conductors of electricity and heat

Answer 18

Metal

Question 19

Metal or Nonmetal or Metaloids

Can be hammered into thin sheets

Malleable

Answer 19

Metal

Question 20

Metal or Nonmetal or Metaloids

Prone to lose electrons

Answer 20

Metal

Question 21

Metal or Nonmetal or Metaloids

Brittle

Answer 21

Nonmetal

Question 22

Metal or Nonmetal or Metaloids

Dull or not shiny

Answer 22

Nonmetal

Question 23

Metal or Nonmetal or Metaloids

Poor conductors of electricity and heat

Answer 23

Nonmetal

Question 24

Metal or Nonmetal or Metaloids

Solid, liquid, or gaseous at room temperature

Answer 24

Nonmetal

Question 25

# Metal or Nonmetal or Metaloids Able to gain or share electrons easily

Answer 25

Nonmetal

Question 26

# Metal or Nonmetal or Metaloids Solid at room temperature

Answer 26

Metaloids

Question 27

# Metal or Nonmetal or Metaloids Either dull or shiny

Answer 27

Metaloids

Question 28

# Metal or Nonmetal or Metaloids A mix of good and poor conductors of electricity and heat

Answer 28

Metaloids

Question 29

# Metal or Nonmetal or Metaloids Phisical properties that tend to be metallic and chemical propertys that tend to be nonmetllic?

Answer 29

Metaloids

Question 30

What is an electron located in the outermost shell?

Answer 30

Valence Electron

Question 31

What is typically eight electrons in the outer shell?

Answer 31

Full Octet

Question 32

What is the net positive charge felt by an electron in an atom with multiple electrons?

Answer 32

Effective Nuclear Charge

Question 33

What is the balance between the positive attraction of protons on valence electrons and the repulsion forces from inner electrons?

Answer 33

Sheilding Effect

Question 34

What is a measure of the size of the atoms?

Answer 34

Atomic Radius

Question 35

What is the measure of the distance between the center of the nuclei of two ions that barely touch?

Answer 35

Ionic Radius

Question 36

What is the energy required to romove one or more electrons from a neutral atom in the gas phase?

Answer 36

Ionization

Question 37

What is the conection between two atoms?

Answer 37

Chemical Bonds

Question 38

What is the tendency of an atom to attract electrons in a chemical bond?

Answer 38

Electronegativity

Question 39

What mesures how likely an atom will react or bond with another atom?

Answer 39

Reactivity

Question 40

What is the curved path that an object takes around another object?

Answer 40

Orbit

Question 41

What is the science that explains the interactions of atoms and subatomic particles?

Answer 41

Quantum Mechanics

Question 42

What are the three main types of bonds?

Answer 42

Ionic, Covalent, Metallic

Question 43

What occurs when two atoms are connected to each other by electrostatic attraction?

Answer 43

Ionic bonds

Question 44

What is when two oppositely charged ions are attracted to each other?

Answer 44

Electrostatic Attraction

Question 45

What is the energy given off by an atom when it gains electrons?

Answer 45

Electron Affinity

Question 46

What is formed from a single ion?

Answer 46

Simple Ion

Question 47

What is formed when two or more atoms join together?

Answer 47

Polyatomic Ion

Question 48

What is a three-dimensional struture that is created when salt compound forms?

Answer 48

Crystal Lattice

Question 49

What occurs when water cuases the ionic compound to break up into ions?

Answer 49

Dissociation

Question 50

What occurs when two atoms share four electrons?

Answer 50

Double Bond

Question 51

What occurs when two atoms share six electrons?

Answer 51

Triple Bond

Question 52

What is the 3-D arrangement of aroms within a molecule?

Answer 52

Molecular Geometry

Question 53

What allows scientists to predict the 3-D shape of a moleccule that is centered arond a central atom?

Answer 53

VSEPR | **V**alence **S**hell **E**lectron **P**air **R**epulson **T**heroy

Question 54

What is a physical property of a compound regarding the sharing of electrons?

Answer 54

Polarity

Question 55

Atoms using what equally share the electrons between them? | **due to similar electronegativity values of the atoms in the molecule**

Answer 55

Nonpolar Bonds

Question 56

What have unequal sharing of electrons between atoms? | **Due to different electronegativity values of the atoms in molecules**

Answer 56

Polar Bonds | **all ionic bonds are polar bonds**

Question 57

What is the small difference in charge?

Answer 57

Dipole

Question 58

What is the vertical bar at the left end of the arrow shows the element that is donating the electrons? | **The arrow shws the direction in which the electrons are moving**

Answer 58

Dipole Movment

Question 59

Name the nonpolar molecules.

Answer 59

* All noble gases * All diatomic molecules * CO2 * Most carbon compounds

Question 61

What means electrons are free to move around?

Answer 61

Delocalized

Question 62

What is abody of delocalized, or free-floating, electrons that surrond cations?

Answer 62

Electron Sea

Question 63

What type of bond cosists of a shared pair of electrons?

Answer 63

Covalent

Question 64

What type of bond cosists of an electron sea?

Answer 64

Metalic

Question 65

What type of bond cosists of the transfer of electrons in the valence shell?

Answer 65

Ionic

Question 66

What type of bond occurs between two nonmetals?

Answer 66

Covalent

Question 67

What type of bond occurs between two metals?

Answer 67

Metallic

Question 68

What type of bond occurs between an nonmetal and an metal?

Answer 68

Ionic

Question 69

What holds the molecule or compound together? ## Footnote **These are covalent, ionic, and metalic bonds which determine the chemical properties of the substance.**

Answer 69

Intramolecular Forces

Question 70

What are the forces btween molecules that influence their physical properties?

Answer 70

Intermolecular Forces

Question 71

What are extremely weak attractive forces that are created by the movment of electrons, which atract to the positive nucleus of an atom?

Answer 71

London Dispersion Forces

Question 72

What are the attraction forces that occur between two polar molecules?

Answer 72

Dipole Forces

Question 73

What are the stongest of the Van der Waals forces?

Answer 73

Hydrogen Bond