Question 8 of 10 How did Thomson's experiment change Dalton's atomic model?
A. Thomson discovered that atoms did not rearrange when forming
compounds.
B. Thomson discovered that atoms of one kind of element could
have different masses.
C. Thomson discovered that atoms changed properties when put in
an electric field.
D. Thomson discovered that the atom contained smaller particles
called electrons.
SUBMIT

the atomic number will stay the same no matter how many electrons it has, so it doesn’t decrease nor increase. it’ll only change with a different number of protons

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

that's it!

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