Trimester 1 Unit 3

Question 1

Positively charged particles in the nucleus

Answer 1

Protons

Question 2

Neutral particles found outside the nucleus

Answer 2

Neutrons

Question 3

Negatively charged particles found outside the nucleus

Answer 3

Electrons

Question 4

Atoms with a charge from gaining or losing electrons. Cannot gain or lose protons or neutrons

Answer 4

Ions

Question 5

The same element differs in mass. The only way to occur is for the neutrons to change

Answer 5

Isotopes

Question 6

If you are not given a charge

Answer 6

protons and electrons are the same

Question 7

if you are not given a mass

Answer 7

use the one given on the periodic table

Question 8

Positive charge

Answer 8

lose electrons

Question 9

Negative charge

Answer 9

gain electrons

Question 10

electrons are found in the

Answer 10

electron cloud

Question 11

the electrons fill into

Answer 11

energy levels or rings

Question 12

the electrons always fill from the

Answer 12

inside to the outside

Question 13

The first energy level can contain

Answer 13

2 electrons

Question 14

The second and third energy levels can contain

Answer 14

8 electrons

Question 15

The average mass between different isotopes

Answer 15

Atomic Mass

Question 16

Atoms that do not release protons, electrons, or energy from the nucleus and are not radioactive

Answer 16

Stable Isotopes

Question 17

Radioisotopes spontaneously release particles or energy from its nucleus.

Answer 17

Unstable Isotopes

Question 18

small energy changes with no change in the nuclei; involves only valence electrons

Answer 18

Chemical Reactions

Question 19

huge energy changes where protons, neutrons, electrons, and gamma rays can be lost or gained

Answer 19

Nuclear Reactions

Question 20

Alpha Decay

Answer 20

+2 charge with 4/2He. Alpha particle is the nucleus of helium

Question 21

Alpha Decay Equation

Answer 21

the mass number decreases by 4 and the atomic number decreases by 2.

Question 22

Beta Decay

Answer 22

an electron leaves the nucleus? 0/-1

Question 23

Beta Decay Equation

Answer 23

mass number does not change and the atomic number increases by 1.

Question 24

Gamma Decay

Answer 24

mass number and atomic number don’t change

Question 25

Cannot be broken down into simpler substances

Answer 25

Element

Question 26

Composed of two or more seperate elements

Answer 26

Compound

Question 27

Basic unit of a chemical element

Answer 27

Atom

Question 28

Emission of ionizing radiation

Answer 28

Radioactivity

Question 29

Ionizing radiation consiting of alpha particles

Answer 29

Alpha Radiation

Question 30

High energy electrons carrying a negative charge

Answer 30

Beta Radiation

Question 31

Gamma rays

Answer 31

Gamma Radiation