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Atoms and Periodic Table
Atoms and Periodic Table
30 terms
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#8thgrade #physicalscience #georgia #atoms #periodictable
Flashcards
30 cards
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Questions
30
Answers
1
Kr is in group _____.
8
1
18
9
2
Horizontal rows of elements on the periodic table
groups
periods
nucleus
atomic
3
Subatomic partical with
positive charge
proton
neutron
period
electron
4
Ca is in group _____.
2
4
3
1
5
The element Na has how many
protons
?
18
3
11
1
6
The center of the atom
electron cloud
symbol
isotope
nucleus
7
area outside the nucleus where the electrons are found
nucleus
electron cloud
isotope
symbol
8
Aluminum is in group _____.
9
13
1
8
9
Oxygen is in group _____.
1
9
16
18
10
Vertical columns of elements on the periodic table
nucleus
groups
periods
atomic
11
element with same number of protons, but diferent number of neutrons
mass
symbol
nucleus
isotope
12
The element Beryllium has how many
neutrons
?
9
4
2
5
13
What is the atomic mass of Neon?
10
2
20.18
18
14
The fourth orbit in the electron cloud holds a total of _____ electrons.
2
8
18
32
15
The element carbon has how many
electrons
?
14
2
12
6
16
Number of protons PLUS (+) the number of neutrons
atomic number
atomic mass
isotope
symbol
17
The first orbit in the electron cloud holds a total of _____ electrons.
8
32
18
2
18
Tells you the number of protons in an atom
atomic ratio
group number
atomic number
atomic mass
19
_______ are located in orbitals outside the nucleus
quarks
electrons
neutrons
protons
20
_______ and _________ are found in the nucleus of the atom
neutrons and electrons
protons and electrons
positive and negative particles
protons and neutrons
21
The second orbit in the electron cloud holds a total of _____ electrons.
18
2
8
32
22
Subatomic partical with
negative charge
neutron
electron
nucleus
proton
23
What is the symbol for silver?
Si
Ag
S
Au
24
Protons and neutrons are found in the ______ of the atom
symbol
atomic number
nucleus
electron cloud
25
The third orbit in the electron cloud holds a total of _____ electrons.
2
8
18
32
26
The element bromine has how many
protons
?
35
4
79
17
27
Subatomic partical with
no charge (neutral)
proton
nucleus
neutron
electron
28
Which part of the atom is the
densest
(has the most mass)?
orbitals
quarks
electron cloud
nucleus
29
The element Ru has how many
neutrons
?
57
44
101
8
30
abbreviation / short way of writing an element's name
atomic number
mass
symbol
isotope
