Physical Science semester one final
0.0(0)
Studied by 4 people
Call Kai
Learn
Practice Test
Spaced Repetition
Match
Flashcards
Knowt PlayCard Sorting
1/54
Earn XP
Description and Tags
Last updated 7:41 PM on 12/31/22
Name | Mastery | Learn | Test | Matching | Spaced | Call with Kai |
|---|
No analytics yet
Send a link to your students to track their progress
55 Terms
1
New cards
Atomic number
The number that represents an element. Also the number of protons
2
New cards
Atomic mass
The mass of the atoms in an element
3
New cards
Ion
The atom that is changed because the proton number and electron numbers are unequal
4
New cards
Anion
An negatively charged ion. electrons are winning
5
New cards
Cation
A positively charged ion. protons are winning
6
New cards
Isotope
Two or more of the same element with a different mass number
7
New cards
Proton Location
Inside the nucleus
8
New cards
Electron location
outside the nucleus d
9
New cards
Neutron Location
Inside the nucleus
10
New cards
Metals
Malleable,Shiny,Good conductors
11
New cards
Nonmetals
Poor conductors,Low boiling points
12
New cards
Wood is burned
Chemical change
13
New cards
Apple sliced in two
Physical change
14
New cards
Vaporization
Liquid to gas
15
New cards
Condensation
Gas to Liquid
16
New cards
Melting
Solid to Liquid
17
New cards
Freezing
Liquid to solid
18
New cards
Solid Energy
Low
19
New cards
Liquid energy
Medium
20
New cards
Gas Energy
High
21
New cards
Exothermic
Releases heat
22
New cards
Endothermic
Absorbs heat
23
New cards
Catalyst
Speeds up a chemical reaction
24
New cards
Inhibitors
Slows down chemical reaction
25
New cards
Increasing concentration
provides a greater number of particles to react
26
New cards
Increasing surface area
increases the number of particles that are exposed and the frequency of collision
27
New cards
The source of energy in starts and the sun
fusion
28
New cards
Requires two smaller atoms to start
fusion
29
New cards
Releases the most energy
fusion
30
New cards
The splitting of one larger nucleus into smaller nuclei
fission
31
New cards
Used to make atomic bombs
fission
32
New cards
More controlled by man
fission
33
New cards
What is the charge of a proton
positive(+))
34
New cards
What is the charge of an electron
negative(-)
35
New cards
What is the charge of an neutron
none
36
New cards
what is the role of an proton?
attracts electrons
37
New cards
what is the role of an electron?
balances atoms
38
New cards
what is the role of a neutron?
Holds nucleus together
39
New cards
what type of atoms bond? (Ionic)
Metals+Nonmetals
40
New cards
what type of atom bond? (covalent)
Nonmetals+Nonmetals
41
New cards
what type of atoms bond (Metallic)
Metals+Metals
42
New cards
conductivity(ionic)
high
43
New cards
Melting point (ionic)
high
44
New cards
Conductivity(Covalent)
Low
45
New cards
Melting point(Covalent)
Low
46
New cards
why balance chemical reactions?
to achieve stability
47
New cards
What does the law of conservation state?
Matter cannot be created nor destroyed.
48
New cards
when you balance and chemical equation what is the only thing you can change?
coefficients
49
New cards
What do molecules look like? (Vaporization)
The molecules spread apart
50
New cards
What do molecules look like?(Condensation)
The molecules come closer together
51
New cards
what do molecules look like? (Melting)
Start to spread
52
New cards
what do molecules look like (Freezing)
Come closer together
53
New cards
Energy increases
Vaporization+Melting
54
New cards
Energy decreases
Condensation+Freezing
55
New cards
What do flat line mean on a phase change graph mean
Heat is being removed
