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QPA 1 Review Flashcards | StudBud
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QPA 1 Review
QPA 1 Review
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A review of atoms, elements, and the periodic table
Flashcards
30 cards
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Practice quiz
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Questions
30
Answers
1
Alkali metals (group 1) have how many valance electrons in its outer shell?
3
2
4
1
2
What's the name of the model of the atom has the electrons in specific orbits around the nucleus?
Bohr
Rutherford
Mendeleev
Dalton
3
Metals, Nonmetals or Metalloids?
Metalloid
Malleable
Metal
Nonmetal
4
What is a positively charged particle?
Valence Electron
Neutron
Proton
Electron
5
What is important about valence electrons?
They have mass
They are positive
They are found in the nucleus
They are responsible for how the atom reacts
6
What is the density of the object?
120 g/cm3
.6 g/cm3
80 g/cm3
1.67 g/cm3
7
What category contains the most elements on the periodic table?
Metals
Halogens
Metalloids
Gases
8
Which is NOT a lab safety rule?
Ask for help if you need it.
Follow all directions.
Ignore a spill or mess.
No running or horseplay.
9
Metals, Nonmetals or Metalloids?
Malleable
Metalloid
Nonmetal
Metal
10
Metalloids are found
on the bottom
on the left side
on the right side
along the stair step
11
What group of the periodic table can not combine with any other atom?
Halogens
Non metals
Metals
Noble gases
12
The formula for calculating density is
D= Mass/Volume
D= Mass x Volume
D= Volume/Mass
13
What subatomic particle determines the identity of the atom?
electrodes
electrons
protons
neutrinos
14
All elements on the stair step are metalloids except - .
Aluminum
Boron
Arsenic
Silicon
15
The atomic number represents the number of what particle in the atom?
Atomic mass
Protons
Electrons
Neutrons
16
What are valence electrons?
electrons found in the nucleus
all the electrons in the atom
outer shell electrons only
electrons on the first shell
17
How many valence electrons does Mg have?
3
4
2
1
18
Neutrons are
the lightest subatomic particle
in the electron cloud
positive
neutral
19
The elements in the same group (column) all have what in common?
Same atomic mass
Same number of neutrons
Same number of protons
Same number of valence electrons
20
Which two particles make up the mass of the atom?
Protons and neutrons
electrons and neutrons
Protons and electrons
positrons and neutrinos
21
Why are alkali metals so reactive?
They have exactly one electron on their outer shell
They only need exactly one more electron to have a full outer shell
They have a full outer shell
They have hydrophobic properties
22
How can you find the number of protons of an element on the periodic table?
Name
Atomic mass
Symbol
Atomic number
23
What are all the elements called in the last column of the periodic table
Metals
Metalloids
Noble gases
Halogens
24
What element makes up the majority of our atmosphere?
Beryllium
Lithium
Nitrogen
Oxygen
25
How is the periodic table organized?
By decreasing atomic mass
By # of valence electrons
By increasing atomic number
By number of neutrons
26
What is the density of the unknown metal?
5g/cm^3
5cm^3/g
.2g/cm^3
80g/cm^3
27
Which group is more reactive?
Group 13
Group 1
Group 2
Group 18
28
Which type of element is ductile and malleable
metals
metalloids
non-metals
radioactive
29
Which is not appropriate lab safety
wearing lab coat
tasting the lab materials
reading all directions
wearing goggles over eyes
30
What are the two particles that a nucleus of an atom is made up of?
antimatter
Electrons
Neutrons
Protons
