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Atomic Structure Flashcards | StudBud
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Atomic Structure
Atomic Structure
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Flashcards
20 cards
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Practice quiz
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Questions
20
Answers
1
Which Lewis electron dot diagram is correct for an S -2 ion?
B
D
C
A
2
The atomic number of an element is equal to
the number of protons plus the number of electrons
the number of protons plus the number of neutrons
atomic mass
the number of protons in the atom
3
The nucleus of an atom consist of :
Neutrons
Protons and neutrons
Protons and electrons
Electrons and neutrons
4
Protons have a
Positive charge
Negative charge
Neutral charge
None of the above
5
After an electron absorbs energy and jumps to a higher level when it comes back down it ...
releases energy as sound
Dies
Releases more electrons
Releases energy as light
6
Electron configuration of Chlorine -1
1s2, 2s2, 2p6, 3s2, 3p5
1s2, 1s2, 2p6
1s2, 2s2, 2p6, 3s2, 3p6
1s2, 2s2
7
All the atoms of Period 3 elements have the same:
Atomic mass
Number of occupied energy shells
Atomic number
Number of oxidation states
8
Electron Configuration for: Sulfur
1s2, 2s2, 2p6, 3s2, 3p4
2-8-6
1s2, 2s2, 2p6
1s2, 2s2, 2p6, 3s2
9
Electrons absorb energy and...
jump to a higher level
all of the above
Do nothing
get bigger
10
Neutron was discovered by
E. Rutherford
E. Goldstein
James Chadwick
John Dalton
11
Which particle of an atom has a negative charge?
Atom
Neutron
Electron
Proton
12
What is the maximum number of electrons in an orbital of any atom?
2
6
1
8
13
Bohrs theory helped explain
electrons have negative charges
atoms combine to form molecules
most of the mass in an atom is from the nucleus
excited hydrogen gas give off certain colors of light
14
Electron configuration for Berylium
1s1
2-3-5
1s2
1s2, 2s1
15
Most of the mass of the atom can be found in the
atom
nucleus
charges
electrons
16
Neutrons are
negative and positively charged particles
neutral particles with mass
negatively-charged particles
positively-charged particles with mass.
17
Rutherfords gold foil discovered that :
the atom is empty
The nucleus is big and negative
There is no nucleus
The nucleus is dense and positive
18
Sulfur in an excited state?
2-8-7
2-8-6
2-8-5-1
2-8-6-1
19
Aluminum in an excited state?
2-8-4
2-8-3-1
2-8-2-1
2-8-3
20
What experiment was used to find protons
Bohr model
light spectrum
alpha particles
Gold foil experiment
