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Worksheets8th grade atomic theory quiz (use ptable.com)
Total questions: 20
Worksheet time: 5hrs 0mins
element name of atomic # 17:
(a)
atomic number of boron:
(a)
number of electrons in a +3 ion of magnesium:
(a)
number of neutrons in fluorine-19:
(a)
hard: atomic mass of a -1 ion with 11 neutrons and 13 electrons:
(a)
number of protons in an oxygen atom:
(a)
which of these is sulfur?
Pnictogen
Chalcogen
Halogen
which is the atomic number of phosphorus?
13
14
15
16
hard: draw the element notation for a -4 ion with 18 electrons and 29 atomic mass.
draw a bohr model of a -2 ion of deuterium (Hydrogen-2).
hard: draw a bohr model of a -4 ion of aluminum-29.
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which of the following are pnictogens? select all that apply.
nitrogen
phosphorus
boron
which of these are highly reactive? select all that apply. (don't worry, it's very clear-cut)
neon
chlorine
lithium
potassium
helium
describe the definition of an isotope, element, or ion (your choice).
what is the atomic number of the heaviest element discovered?
(a)
which of these is a transition metal?
chromium
neon
lithium
carbon
which of the following could be H2O? (it's simpler than it looks)
SUPER HARD: which of the following could be BeHPO4?
which of the following could demonstrate a uranium atom(s) being split? select all that apply.
235U +N0 → 236U
