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Periodic Table Review Flashcards | StudBud
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Periodic Table Review
Periodic Table Review
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A #science review of the #periodic table and #atomic structure for grade 9
Flashcards
20 cards
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Questions
20
Answers
1
The atomic number of an element represents:
The number of protons in the nucleus
The number of electrons in the nucleus
The number of neutrons in the nucleus
The mass of the atom
2
The chemical formula for ammonia is
CH3OH
CH4
NH3
H2O2
3
The vertical columns on the periodic table are called:
groups
periods
rows
families
4
The number of neutrons in an aluminum atom is
26
13
27
14
5
On your white board, draw the Bohr-Rutherford diagram for an atom of chlorine, Cl
Cl
Cl
6
The horizontal rows on the periodic table are called
groups
columns
families
periods
7
The chemical formula of a compound tells you
the elements that are present
the colour of the compound
the number of atoms in the compound
the name of the compound
8
The period number represents
the number of electrons in the outer energy level
the end of a sentence
the number of protons in the nucleus
the number of energy levels surrounding the nucleus
9
The most reactive metals on the periodic table are the
alkali metals
noble gases
halogens
alkaline earth metals
10
The dots in a Bohr Rutherford diagram represent
protons
electrons
atoms
neutrons
11
The group number of the periodic table represents
the number of protons in the nucleus
the number of electrons in the outer energy level
the number of protons inside the nucleus
the number of energy levels surrounding the nucleus
12
Identify the element in group 2 period 3
Ne (neon)
B (boron)
Mg (magnesium)
K (potassium)
13
Identify the element with the atomic number 56
Ba (barium)
Fe (iron)
Ca (calcium)
I (iodine)
14
The number of periods on the periodic table
18
8
7
5
15
On your white board draw a molecule of methane CH
4
CH4
CH4
16
Subtracting the atomic number from the mass number of an element gives me
number of neutrons
number of electrons
a surprise
number of protons
17
The mass number of calcium is
12
20
2
40
18
The most reactive non-metals are the
alkali metals
halogens
alkaline earth metals
noble gases
19
The number of protons in a fluorine atom is
19
10
9
18
20
The least reactive elements on the periodic table are the
alkaline earth metals
halogens
alkali metals
noble gases
