5,6,11

Question 1

In a chemical change, mass is CONSERVED

Answer 1

Law of conservation of mass

Question 2

Each element is made up of tiny, individual particles called

Answer 2

Atoms

Dalton a atomic theory

Question 3

Atoms are_____, they can’t be created or_____

Answer 3

Indivisible, destroyed

Question 4

All atoms of EACH element are ______ in every respect

Answer 4

Identical

Question 5

Atoms of ONE ELEMENT are _______ from atoms ANY OTHER ELEMENT

Answer 5

Different

Question 6

Atoms of ONE ELEMENT may _______

Answer 6

Combine with atoms of other elements

Question 7

2 elements combine to form more than 1 compound, the different masses of one element that combine with the same mass of other element are in a simple ratio of whole numbers

Answer 7

Law of multiple proportions

Question 8

e or e-

Answer 8

Electron

Question 9

Found outside the nucleus, with fundamental charge of 1-

Answer 9

Electron

Question 10

p or p+

Answer 10

Proton

Question 11

Found inside the nucleus with the fundamental charge of 1+

Answer 11

Proton

Question 12

n or n^0

Answer 12

Neutron

Question 13

Found inside the nucleus with a fundamental charge of 0

Answer 13

Neutron

Question 14

Every atom contains an extremely small, extremely dense _______.

Answer 14

Nucleus

Question 15

Atoms of the same element that have different masses—different number of neutrons

Answer 15

Isotopes

Question 16

Mass number, A

Answer 16

Isotopes

Question 17

of protons (Z) + # of neutrons (N) =

Answer 17

Mass number, A

Question 18

Name an isotope

Answer 18

Elemental name-mass number

Not subtract

Question 19

What’s the name of a carbon with 6 protons and 6 neutrons

Answer 19

6+6=12

Carbon-12

Question 20

The percentage by mass of the elements in a compound is ALWAYS THE SAME

Answer 20

Law of definite composition

Question 21

Form of energy that occurs as waves, consists of both electric and magnetic fields

Answer 21

Electromagnetic radiation

Question 22

The range of possible electromagnetic radiation wavelengths and frequencies

Answer 22

Electromagnetic spectrum

Question 23

List the order of electromagnetic radiation

Answer 23

Gamma, X-rays, UV, visible, infrared, microwave, radio

Question 24

Speed of light, c formula

Answer 24

3.00 x 10^8 m/s

Question 25

Velocity of an electromagnetic wave

Answer 25

c= wavelength x frequency

Question 26

Spectrum having no distinct lines; the range of wavelengths is uninterrupted

Answer 26

Continuous spectrum

Question 27

Spectrum that has lines at certain wavelengths and nothing in between those lines

Answer 27

Line spectrum

Question 28

Individually distinct lines in a line spectrum

Answer 28

Discrete lines

Question 29

Energy released by electrons is in the form of a massless packet of electromagnetic radiation

Answer 29

Photon

Question 30

Light has both wavelike properties and particle like properties

Answer 30

Wave-particle duality

Question 31

An atom consists of a dense nucleus containing all of the atoms positive charge and nearly all its mass

Answer 31

Bohr model of the hydrogen atom

Question 32

Negatively charged electrons of very small mass travel in orbits around the nucleus and the orbits are huge compared to the nucleus

Answer 32

Bohr model of the hydrogen atom

Question 33

Am amount that is limited to a discrete set of values

Answer 33

Quantized

Question 34

An amount that can have any value

Answer 34

Continuous

Question 35

The process by which an electron moves between orbits

Answer 35

Quantum jump or leap

Question 36

Electron in lowest energy orbit available (H atom); all electrons in the lowest possible energy levels

Answer 36

Ground state

Question 37

Electron in orbit with energy higher than ground state; one or more electrons has an energy level above ground state

Answer 37

Excited state

Question 38

Orbits in the Bohr model of the hydrogen atom

Answer 38

Principal energy levels or principal quantum numbers (n)

Question 39

When an electron falls from an excited state to a lower energy state; it releases the energy by emitting a photon of

Answer 39

Electromagnetic radiation

Question 40

Matter in motion such as electrons has properties that are normally associated with waves

Answer 40

Quantum mechanical model of the atom (de brogile)

Question 41

Applied the principles of wave mechanics to atoms

Answer 41

Quantum mechanical model of atom (schrodinger)

Question 42

Principal energy levels, n Sub levels Electron orbitals Orbital occupancy

Answer 42

Overview of the 4 quantum numbers

Question 43

n=1-7

Answer 43

Principal energy levels, n

Question 44

Sub levels

Answer 44

N=2; 2s

Question 45

Region in space around a nucleus in which there is a high probability of finding an electron

Answer 45

Orbital

Question 46

Sub levels orbitals

Answer 46

``` S= 1 orbital P= 3 orbitals D= 5 orbitals F= 7 orbitals ```

Question 47

Average radius or diameter of an atom

Answer 47

Atomic size

Question 48

An atom or group of atoms that had a net electrical charge resulting from a difference between the number of protons and electrons

Answer 48

Ion

Question 49

The energy required to remove one electron from a neutral gaseous atom of an element Ex: Mg + 738kJ --- Mg+ + e-

Answer 49

First ionization energy | First ionization energy= 738kJ/mol

Question 50

Elements in a group in the periodic table with similar chemical properties

Answer 50

Chemical family

Question 51

Group 1A/1 with out hydrogen Valence electron configuration:ns1 Representative reaction: Na---Na+ + e-

Answer 51

Alkali metals

Question 52

Group 2A/2 Valence electron configuration: ns2 RR: Mg---Mg2+ 2 e-

Answer 52

Alkaline Earths

Question 53

Group 7A/17 Valence electron configuration: ns2np5 RR: Cl + e- ---- Cl-

Answer 53

Halogens

Question 54

Group 8A/18 Valence electron configuration: ns2np6 RR: non reactive

Answer 54

Noble gases

Question 55

Exhibition of the physical and chemical properties of metals

Answer 55

Metallic character

Question 56

Elements that have some properties of both metals and non metals

Answer 56

Metalloid or semimetal

Question 57

The system of naming chemicals

Answer 57

Chemical nomenclature

Question 58

Tiniest independent particle of a pure substance

Answer 58

Molecule

Question 59

7 diatomic molecules

Answer 59

H_2, N2, O2, F2, Cl2, Br2, I2

Question 60

A compound formed by 2 nonmetals or a metalloid and a nonmetal

Answer 60

Binary molecular compound

Question 61

Cation

Answer 61

Police charges ion

Question 62

Anion

Answer 62

Negatively charged ion

Question 63

Zinc ion | Silver ion

Answer 63

Zn2+ | Ag+

Question 64

Hg_2 2+

Answer 64

Mercury (l) ion

Question 65

Hydroxide ion | Ammonium ion

Answer 65

OH- | NH4+

Question 66

Formed when oppositely charged ions attract one another

Answer 66

Ionic compound