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Chemistry Unit - Science 7 Flashcards | StudBud
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Chemistry Unit - Science 7
Chemistry Unit - Science 7
16 terms
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Atoms, Molecules, Periodic Table
Flashcards
16 cards
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Practice quiz
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Questions
16
Answers
1
What is the maximum number of electrons found on the 2nd energy level?
4
6
8
2
2
Which formula below is organic?
CH4
H2O
PbS2
NH3
3
The subscript tells us how many __________ there are.
electrons
atoms
molecules
protons
4
Atomos is Greek for
cannot be cut
high energy
tiniest particle
5
Valence electrons are found on the inner most level.
True
False
6
Which sub atomic particles make up the atomic mass?
Protons & Neutrons
Neutrons & Electrons
Protons & Electrons
7
The atomic number is equal to?
Neutrons & Electrons
Neutrons & Protons
Protons & Electrons
8
The center of the atom is called the
Neutron
Nucleus
Neutral
9
Protons have a neutral charge
False
True
10
Matter is made of neutrons.
True
False
11
There are 3 subatomic particles.
False
True
12
On the Periodic Table atomic mass is usually a number with decimals.
False
True
13
On the Periodic Table the Group/column number = the number of valence electrons.
False
True
14
Rows on the periodic table tell us how many _________ there are.
electrons
valence electrons
neutrons on the energy levels
energy levels
15
What is the maximum number of electrons the 1st energy level can hold?
2
8
4
6
16
The number of Neutrons can be found by
Atomic Mass + Atomic Number
Atomic Mass = Atomic Number
Atomic Mass - Atomic Number
