Radiation Physics Exam 1 Notes 3

Front 1

Simple substance composed of Atoms which cannot be broken down by normal/regular methods

Back 1

Element

Front 2

How many naturally occurring elements are there on the periodic table

Back 2

92

Front 3

Smallest part of an element that retains the properties of the element example from the periodic table

Back 3

Atom

Front 4

Two or more elements that are chemically united together

Back 4

Compound

Front 5

Two or more atoms that are combined together; smallest part of a compound

Back 5

Molecule

Front 6

What are the three fundamental particles of an Atom?

Back 6

Electrons negative charge and no mass, nucleus/protons positive charge and 1 mass, and neutrons no charge and 1 mass.

Front 7

Columns of the table

Ex. Roman numerals

Back 7

Groups

Front 8

Rows of the table

Ex k-q or 1-7

Back 8

Periods

Front 9

The atomic number tells how many?

Back 9

Protons an Atom has

Front 10

Strength of attachment of an electron to the nucleus

Back 10

Binding energy

Front 11

Which Atom, carbon, barium or tungsten has a greater BE(binding energy) ?

Back 11

Tungsten because it has more electrons/neutron/protons

Front 12

Electrostatic between an electron in nucleus match the force of motion.

F=ma

Back 12

Centripetal force

Front 13

Electron transfer. Bonding of two Atoms with opposite and imbalanced charges. One Atom to become positively charged and the other negatively charged (Atoms charged like these are called ions). these opposite charges then attract one another, causing the two atoms, or ions to bond

Back 13

Ionic bond

Front 14

Electrons are being shared

Back 14

Covalent bond

Front 15

Atoms having the same atomic number Z. Fixed number of protons

Back 15

Isotopes

Front 16

Atoms having the same atomic mass. same number of nucleons (protons and neutrons)

Back 16

Isobars

Front 17

Atoms with the same number of neutrons (n)

Back 17

Isotones

Front 18

Atoms that exist in a different energy state. Has everything in common except energy

Back 18

Isomers

Front 19

An atom containing excess energy with spontaneously emits particles and energy and transforms into another Atom and results in too few or too many neutrons

Back 19

Radioactivity disintegration/decay

Front 20

Has a positive charge with a mass of 4 and is a heavy particle and does not travel far it does internal harm and external harm is nearly harmless

Back 20

Alpha particle

Front 21

It is not heavy and it travels far it is an electron like particle and has a negative charge and no Mass

Back 21

Beta particle

Front 22

Increases the number by one and maintains atomic mass

Back 22

Radioactive decay beta emission

Front 23

Atomic number (Z) reduces by 2 and atomic mass reduces by 4

Back 23

Radioactive decay alpha emission

Front 24

The? Of a radioisotope is the period of time required for a quantity of radioactivity to be reduced to half its original value

Back 24

Half life of a radioisotope

Front 25

Which type of ionizing radiation today has a higher annual exposure mean for the general population?

Back 25

Man-made

Front 26

Which type of man-made radiation has a higher annual exposure of the US population according to NRCP # 160?

Back 26

CT

Front 27

Ionization of an Atom can cause the atom to lose an electron

-true or false ?

Back 27

True

Front 28

Which type of decay changes the Z number by 1 While keeping the atomic mass the same?

Back 28

Beta

Front 29

Which type of decay changes the Z number by 1 While keeping the atomic mass the same?

Back 29

Beta

Front 30

Which type of decay occurs with only heavy elements and emits the equivalent of an atomic mass of 4 and an atomic number of 2 ?

Back 30

Alpha

Front 31

What does the group specify on the periodic table?

Back 31

The number of electrons in the outer valence shell (group)

Front 32

What does the group specify on the periodic table?

Back 32

The number of electrons in the outer valence shell (group)

Front 33

What does the period specified on the periodic table?

Back 33

The number of orbital shells

Front 34

What does the group specify on the periodic table?

Back 34

The number of electrons in the outer valence shell (group)

Front 35

What does the period specified on the periodic table?

Back 35

The number of orbital shells

Front 36

What is the difference between atomic mass and atomic number

Back 36

A= atomic mass and Z= atomic #

Front 37

If an element has a balance of three. What can you determine about the element

Back 37

It has three electrons in the outer shell and it is in group 3

Front 38

If an element has a balance of three. What can you determine about the element

Back 38

It has three electrons in the outer shell and it is in group 3

Front 39

Which chemical bond shares electrons?

Back 39

Covalent

Front 40

If an element has a balance of three. What can you determine about the element

Back 40

It has three electrons in the outer shell and it is in group 3

Front 41

Which chemical bond shares electrons?

Back 41

Covalent

Front 42

Which chemical bond transfers electrons?

Back 42

Ionic