RT 205 HW1 Flashcards Preview

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Flashcards in RT 205 HW1 Deck (44):
1

Smallest part a substance and still retain the properties of that substance

Atom

2

The small dense center of an atom, which contain nucleons (neutrons and protons)

Nucleus

3

Radius of an atomic nucleus

10^-14m

4

Radius of an atom

10^-10m

5

Equal to the number of protons and neutrons in an atom

Mass number

6

Equal to the number of protons in an atom, and also equal to the number of electrons in a stable atom.

Atomic number

7

# AMU in proton

1.00728

8

# AMU in neutron

1.00867

9

# AMU in electron

0.000548

10

Proton: Weight in Kg

1.672x10^-27 Kg

11

Neutron: Weight in Kg

1.674x10^-27 Kg

12

Electron: Weight in Kg

9.11x10^-31 Kg

13

When Z=differerent, N=Same

Isotone

14

When N=different, Z=Same

Isotope

15

When Z=Different, A=Same

Isobar

16

When A=Same, Z=Same in a metastable state

Isomer

17

1 AMU = ___________ MeV

931.5 MeV

18

The mass of a single atom

Atomic Weight

19

The amount by which the mass of an atomic nucleus is less than the sum of the masses of its constituent particles.

Mass Defect

20

The energy required to separate a single particle or group of particles from a molecule, atom, or nucleus.

Binding Energy

21

The emission or transfer of radiant energy as particles, electromagnetic waves

Radiation

22

A stream of atomic or subatomic particles that may be charged positively or negatively or not at all.

Particulate Radiation

23

Any of the atomic particles that compose matter and energy, such as protons, neutrons, and electrons

Elementary particles

24

Velocity= Frequency x Wavelength

Wave Model

25

High frequency, high energy EM radiation interacts like a particle when contracting matter. Photon energy and frequency are directly related.

Quantum Model

26

The spontaneous emmission of radiation, either directly from unstable nuclei, or as a consequence of a nuclear reaction

Radioactivity

27

Formula to convert degree Celcius to Farenheit

F=1.8(C)+32

28

Formula to convert degree Farenheit to Celcius

C= (F-32)*1.8

29

If 1 KV = 1000 V, how many volts are equal to 74 kV

74,000 V

30

How many elements in the periodic table of elements?

118

31

How many elements are natural in the P.T.E.?

92

32

Define Force and give derived and SI Units

Anything that changes an objects's motion
F= mass x acceleration
= Kg m/s^2
= N

33

Define Work and give derived and SI Units

Measures the change a force has on an object's position or motion
W= Force x distance
= N x m
= kg m/s^2 x m

34

Define Power and give derived and SI Units

Rate at which work is done
P= Weight / time
= Kg m^2/s^2/s
= Kg m^2/s^3
= Watt (W)

35

Define Energy and give derived and SI units

The ability to do work
Derived = E , SI= J

36

How many Joules in 1 eV?

1.602 X 10^-19 J

37

A substance that cannot be split into simpler substances

Element

38

The type of valence when an atom donates an electron

+ valence

39

The type of valence when an atom gives or accepts an electron

- valence

40

The giving and accepting of electrons between atoms

Ionic Bond

41

Atoms that share the outermost shell

Non-Polar Covalent Bonds

42

Atoms alignment creates a positive charge at one end and a negative charge on the opposite end.

Polar Covalent Bonds

43

Attraction/ repulsion stability that forms between two atoms when they share electrons

Covalent Bonds

44

What is Avogadro's #? (The actual # not definition)

6.0228x10^23