How do you find atomic mass?

The sum of protons and neutrons

When a elements are chemically combined the properties of the the new compound

Are different than the original elements

Two atoms of the same element with different number of neutrons

What is an ionic bond?

Atoms either taking or give valence electrons (no sharing)

What does the atomic number do?

Tell the amount of just protons

The period an element is in tells us...

How many electron shells the element has

What are the subatomic particles?

Protons, neutrons, and electrons

CHALLENGE: How many protons, neutrons, and electrons are in this atom?

Protons 8, Neutrons 8, Electrons 10

Two substances physically together

Two elements that are chemically bonded together

Matter is anything that has mass and takes up space

The group number an element is in tells us...

How many valence electrons the element has

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Unit 2A Review

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Matter, Compounds, and Mixtures Subatomic Particles Periodic Table Trends

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Questions 32

Answers

1
What is a Covalent Bond?
when 2 atoms group together
when 1 atom forms with another atom
when 2 atoms share electrons
when 1 atom transfers electrons to another atom
2
Atomic Mass
Xe
Pizza
131.293
54
3
How do you find atomic mass?
The product of protons and neutrons
The product neutrons and electrons
The sum protons and electrons
The sum of protons and neutrons
4
When a elements are chemically combined the properties of the the new compound
Are the same as one of the original elements
Are the same as the original elements
Are different than the original elements
Are different than one of the original elements
5
Covalent Bond
NM+M
NM+NM
M+M
None of the above
6
The positive subatomic particles is
Proton
Neutron
Cation, anion, ion
none of the above
7
The negative subatomic particles is
Neutron
none of the above
Proton
Electron
8
What are isotopes
Two atoms of the same element with different number of neutrons
Two different types of atoms
Two atoms of the same element with different number of protons
Two atoms of different elements with different number of electrons
9
Ionic Bond
NM+NM
M+NM
M+M
None of the above
10
An atom has an atomic mass of 20 and an atomic number of 20, how many neutrons does the atom have?
0
40
20
1
11
Is O₂ a Covalent Bond?
Maybe..
No
Yes
I don't know
12
What is an ionic bond?
Atoms taking valence electrons
Atoms either taking or give valence electrons (no sharing)
Atoms either take or give valence electrons (sharing)
Atoms giving valence electrons
13
What does the atomic number do?
Tell the amount of just electrons
Tell the amount of just protons
Tell the amount of just neutrons
Tell the amount of neutrons and protons
14
What is the atomic number of this atom?
4
13
9
5
15
An atom has an atomic mass of 53 and an atomic number of 30, how many neutrons does the atom have?
2
83
23
53
16
What is the atomic mass of this atom?
4
13
5
9
17
The period an element is in tells us...
How many protons the element has
How many valence electrons the element has
How many electrons the element has
How many electron shells the element has
18
What are the subatomic particles?
ions, cations, anions
h2o h3o
Protons, neutrons, and electrons
19
An example of matter is....
The air
A thought
A sound
20
what is the difference between atomic number and proton number
one is big one is small
one is electric
nothing
one is on top one is on the bottom
21
Periods in the periodic table are...
columns
rows
22
CHALLENGE: How many protons, neutrons, and electrons are in this atom?
Protons 8, Neutrons 8, Electrons 8
Protons 8, Neutrons 8, Electrons 10
Protons 16, Neutrons 8, Electrons 6
Protons 8, Neutrons 16, Electrons 6
23
Mixtures are...
Two atoms that are chemically bonded together
Two elements that are chemically bonded together
Two substances physically together
24
How many valence electrons does this atom have?
10
4
2
8
25
Atomic Number?
7
9
8
10
26
Groups on the periodic table are arranged
Horizontally
Vertically
27
Compounds are...
Two atoms physically together
Two atoms that are chemically bonded together
Two elements that are chemically bonded together
28
C-12 and C-13 are isotopes of one anoth another, both of them have the same amount of
Electrons
Charge
Protons
Neutrons
29
When are the number of electrons not equal to the atomic number?
When an atom is an isotope
When an atom is an ion
When an atom is a child
Never
30
What is matter?
I dont know
Matter is a something that will destroy things
Matter is a word?
Matter is anything that has mass and takes up space
31
What type of mixture is shown below?
Compound
Homogenous
Mixed
Heterogeneous
32
The group number an element is in tells us...
How many valence electrons the element has
How many protons the element has
How many electrons the element has
How many electron shells the element has

Unit 2A Review Flashcards | StudBud