Chem Midterm

Question 1

nuclear where 2 protons and 2 neutrons are released

Answer 1

alpha

Question 2

nuclear decay with highest ionizing effect

Answer 2

alpha

Question 3

nuclear decay with no mass and no charge

Answer 3

gamma

Question 4

decay emitting an electron

Answer 4

beta

Question 5

nuclear decay giving off a helium nucleus

Answer 5

alpha

Question 6

most penetrating nuclear decay

Answer 6

Gamma

Question 7

decay where a neutron changes to a proton

Answer 7

Beta

Question 8

The nuclear reaction that releases the most energy

Answer 8

fusion

Question 9

the nuclear reaction where only a small particle is released

Answer 9

decay

Question 10

the nuclear reaction where two nuclei are combined

Answer 10

fusion

Question 11

the nuclear reaction where a nucleous splits fairly even

Answer 11

fission

Question 12

protons =

Answer 12

electrons

Question 13

atomic mass - protons =

Answer 13

neutrons

Question 14

which subatomic particle is responsible for creating an ion

Answer 14

electrons

Question 15

which subatomic particle determines the element

Answer 15

protons

Question 16

in order to form a cation, an atom must

Answer 16

lose electrons

Question 17

An electron is excited when energy is absorbed

Answer 17

True

Question 18

an electron is in its ground state after energy is absorbed

Answer 18

false

Question 19

the atom became an ion when it absorbed energy

Answer 19

false

Question 20

The shotest wavelength =

Answer 20

highest energy

Question 21

Steps of why color is added to the flame

Answer 21

red- electrons absorb the energy
yellow- electron is excited to a higher enrgy state
green- electron releases energy and drops to a lower energy
blue- if the photon of energy has a wavelength in the visible part of the spectrum then it is visible to our eyes

Question 22

atomic size

Answer 22

the size of the atom - it increases down and to the left

Question 23

ionization energy

Answer 23

the energy needed to remove an electron - it increases up and to the right

Question 24

electronegativity

Answer 24

the pull of electrons toward the nucleus bond - it increases up and to the right

Question 25

ionic size

Answer 25

the size of the atom - it increases down and to the left

Question 26

non metal + non metal =

Answer 26

covalent

Question 27

non metal + metal =

Answer 27

ionic

Question 28

metal + metal

Answer 28

metallic

Question 29

< 0.4

Answer 29

non-polar covalent

Question 30

0.4 - 2.0

Answer 30

polar covalent

Question 31

> =2.0

Answer 31

ionic

Question 32

when doing electron negativity the number is never…

Answer 32

Negative

Question 33

LDF

Answer 33

Non polar

Question 34

dipole - dipole and hydrogen bonding

Answer 34

Polar

Question 35

intramolecular force

Answer 35

within a molecule

Question 36

intermolecular force

Answer 36

between a molecule

Question 37

LDF. 2

Answer 37

weakest intermolecular force

Question 38

Hydrogen bonding

Answer 38

strongest intermolecular force

Question 39

Solute

Answer 39

substance being dissolved

Question 40

solvent

Answer 40

dissolving medium (Substance doing the dissolving)

Question 41

solution

Answer 41

Homogeneuous mixture

Question 42

electrolyte

Answer 42

substance that conducts electricity in water