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Periodic Table and Atoms Flashcards | StudBud
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Periodic Table and Atoms
Periodic Table and Atoms
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atoms, periodic table
Flashcards
15 cards
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Practice quiz
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Questions
15
Answers
1
Which letter is pointing to an electron?
C
A
D
B
2
An atom of Au with 79 protons, 79 electrons and 118 neutrons would have an atomic mass of:
39
276
158
197
3
Which element is a noble gas?
Hafnium
Holmium
Helium
Hydrogen
4
The horizontal row on the periodic table is called a(n)
group
atomic number
period
family
5
Which letter is pointing to the nucleus?
B
D
C
A
6
Which letter is pointing to a neutron?
A
C
D
B
7
Elements in the periodic table are arranged by:
color
atomic mass
number of neutrons
atomic number
8
Which letter is pointing to a proton?
D
B
C
A
9
Most of the elements in the periodic table are
nonmetals
metalloids
metals
10
Which letter is pointing to a particle with no charge?
C
D
B
A
11
What does the number at the top of the square above tell you about carbon?
a carbon nucleus has 6 protons
a carbon atom has 6 electrons in its outermost energy level
carbon has 6 isotopes
carbon has an average atomic mass of 6
12
The vertical column of elements in the periodic table is called a(n)
period
group
semiconductor
atomic mass
13
Which statement about Cobalt and Nickel is true?
Both are in the same group?
Both are non-metals.
Both are noble gases.
Both are transition metals.
14
What type of element is arsenic (As)?
metal
noble gas
metalloid
non-metal
15
Which of the following best describes the properties of metals?
soft, oily, and very reactive
shiny, malleable, and conductive
hard, brittle and nonconductive
liquid, dark and conductive
