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Chemistry Unit 1 Flashcards | StudBud
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Chemistry Unit 1
Chemistry Unit 1
21 terms
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309 plays
atoms, protons, neutrons, electrons, electron configuration, periodic table, alpha & beta decay
Flashcards
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Questions
21
Answers
1
In nuclear notation, the X represents
symbol
atomic number
average atomic mass
atomic mass number
2
What charge does a proton have?
Positive
Negative
Neutral
3
What is the resulting atomic number if the uranium isotope undergoes beta decay?
92
93
235
91
4
Which is more likely to lose electrons?
Metalloids
Nonmetals
Metals
5
Which two particles make up the mass of the atom?
Protons and electrons
Protons and neutrons
Electrons and neutrons
6
Which type of radiation penetrates through the hand and piece of aluminum?
beta
alpha
gamma
7
What is wrong with this orbital diagram?
The 2p should be all up arrows
The 2p should be all down arrows
The 2p needs 5 lines
It doesn't have enough arrows
8
What type of radioactive decay is shown here?
Alpha
Beta
Gamma
9
How many valence electrons does a fluorine atom have?
18.998
3
5
7
10
What is the resulting mass number if the titanium isotope undergoes alpha decay?
44
23
22
48
11
Which is more likely to accept electrons?
Metalloids
Metals
Nonmetals
12
All of the atoms of lithium pictured have the same number of protons, and
the same mass
different numbers of electrons
different numbers of neutrons
13
Which element does this electron configuration represent?
Oxygen
Carbon
Boron
Nitrogen
14
Iron is located in which block of the periodic table?
F
S
D
P
15
The majority of the periodic table is made up of
Nonmetals
Metalloids
Metals
16
How many neutrons does a lithium atom have?
6.94
7
3
4
17
What is kicked out of the nucleus during alpha decay?
Li
H
e
He
18
How many valence electrons does P have?
15
31
5
3
19
What is kicked out of the nucleus during beta decay?
proton
helium nucleus
electron
20
What is the electron configuration for nitrogen?
1s2 2s2 2p2
1s2 2s2 2p3
1s2 2s2 2p1
1s2 2s2 2p4
21
What is true of Marie Curie?
First woman to win a Nobel Prize
Discovered Polonium and Radium
All of these are true
Won two Nobel Prizes
