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PS Unit 3 Atoms and the Periodic Table Flashcards | StudBud
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PS Unit 3 Atoms and the Periodic Table
PS Unit 3 Atoms and the Periodic Table
20 terms
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periodic table, isotopes, atomic structure #atoms #atomicstructure #periodictable
Flashcards
20 cards
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Questions
20
Answers
1
The Alkali Metals are extremely reactive because they have ___ valence electron.
2
3
8
1
2
Sodium is a member of the ________ Metal family
Halogen
Alkaline Earth
Noble Gas
Alkali
3
The atomic mass of Aluminum is 27 amu. 27 grams of Aluminum is one _____.
anion
mole
isotope
atom
4
Mass Number =
electrons + neutrons
protons
electrons + protons
protons + neutrons
5
Who wrote the Atomic Theory?
Hatter
Thomson
Rutherford
Dalton
6
Which particle in the atom identifies what element it is?
electron
proton
neutron
7
Iron, copper,and gold and members of the _______ family.
Halogens
Alkali Metals
Transition Metals
Noble Gases
8
The most reactive nonmetals is ______.
Francium
hydrogen
Fluorine
oxygen
9
Who discovered the nucleus with his Gold Foil Experiment?
Dalton
Bohr
Rutherford
Hatter
10
Atoms of the same element that have different number of neutrons are called
isotopes
cations
protons
neutrons
11
Most of the atom is made up of
the nucleus
neutrons
the electron cloud
protons
12
How many electrons can fit in the 2nd energy level?
2
8
18
32
13
When two smaller nuclei combine, like in stars, it is called
fission
fusion
14
The unit for atomic mass is
nanogram
microgram
amu
gram
15
The nucleus is composed of
electrons and neutrons
protons and neutrons
protons and electrons
only protons
16
The name of group 17, or 7A, is the
Alkali Metals
Alkaline Earth Metals
Noble Gases
Halogens
17
____________ wrote the Atomic Theory.
Democritus
John Dalton
Rutherford
JJ Thomson
18
Which subatomic particle is the smallest?
electron
proton
neutron
19
Which particle has about the same mass as a proton?
isotope
neutron
electron
nuclide
20
Neon has ____ valence electrons, which makes it unreactive.
2
6
8
18
