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Chemistry Basics
Chemistry Basics
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air quality book: basic vocab and understanding of the periodic table
Flashcards
17 cards
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Questions
17
Answers
1
What are the columns on the periodic table called?
orbitals
groups
periods
families
2
The temperature at which a liquid substance changes to a solid?
freezing point
boiling point
melting point
sublimation
3
What are the rows on the periodic table called?
groups
families
periods
orbitals
4
What does the law of charges tell us?
opposites repel
their is no such law
like charges attract
opposites attract
5
Which group on the periodic table are colorless and odorless gases?
14
1
18
2
6
What are the 3 subatomic particles?
protons, neutrons, electrons
protons, electrons, orbitals
protons, nucleus, electrons
protons, orbitals, neutrons
7
a mixture that varies in composition from 1 part to another
pure substance
compound
homogeneous
heterogeneus
8
Which one has the smallest mass?
electrons
neutrons
all 3 have the same mass
protons
9
Elements in the same group on the periodic table have the same number of...
energy levels
neutrons
protons
valence electrons
10
A type of matter made of a single type of particle with distinct, predictable properties.
mixture
compound
solution
pure substance
11
2 or more substances that combine, but retain their own identity
element
compound
mixture
molecule
12
a mixture that has a uniform composition of substances
homogeneous
hetrogeneous
pure substance
compound
13
What subatomic particles are found in the nucleus?
protons and electrons
electrons and neutrons
protons, neutrons, electrons
neutrons and protons
14
How are elements arranged on the periodic table?
by their nucleus
by their atomic mass
the order they were discovered
by their protons
15
A pure substance made of 2 or more elements
element
solution
compound
mixture
16
What subatomic particle is always the same as the atomic number?
protons
electrons
neutrons
nucleus
17
Which family on the periodic table are the most stable?
metalloids
transition metals
noble gases
alkali earth metals
