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Element of the periodic table Oxygen Flashcards | StudBud
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Element of the periodic table Oxygen
Element of the periodic table Oxygen
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#periodictable#oxygen#science
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Answers
1
True or false: Nearly 90 percent of the weight of the oceans is due to oxygen.
TRUE
FALSE
2
in what row is the element oxygen at in the periodic table?
row 8
row 16
row 2
row 9
3
in what group is oxygen in the periodic table?
group 16
group 18
group 8
group 5
4
how many valence electrons are in an atom of oxygen
2 valence electrons
16 valence electrons
8 valence electrons
6 valence electrons
5
how you find the neutrons in the element?
Subtract the atomic number from the atomic mass
Multiply the the proton,and the electron to get it.
need to add all of the numbers
6
What do you get if you combine 2 hydrogens with 1 oxygen
Nothing
Air
Periodic table
Water
7
What is oxygen classified as on the periodic table?
gas
solid
i don'k know sorry. :(
non-metal
8
Who discovered Oxygen?
carl wilhelm scheele
kodak Black
joseph priestley
Humphry Davy
9
what is the Atomic Weight of oxygen? (average mass of the atom)
16.99
17.79
13.78
15.99
10
how much of oxygen does the earths atmosphere?
Oxygen also makes up about onefifth of the Earths atmosphere
Oxygen also makes up about two of the Earth's atmosphere
Oxygen also makes up about 9 of the Earth's atmosphere
Oxygen also makes up about four of the Earth's atmosphere
