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15 questions
What charge does an atom have when it GAINS electrons?
Positive
Negative
Neutral
What subatomic particle changes in an ion?
The number of electrons
The number of protons
The number of neutrons
What type of atom is element C?
Normal atom
Ion
Isotope
What is the picture displayed?
atom
element
compound
How would H2O be classified? Check all that apply.
Atom
Molecule
Compound
How would O2 be qualified. Check all answers that apply.
Atom
Molecule
Compound
How many valence electrons ae in the element Carbon?
2 electrons
6 electrons
4 electrons
None of the above
What is an ion?
An atom that has gained or lost an electron.
An atom that has gained or lost a neutron.
An atom that has gained or lost a proton.
An atom that is electrically neutral.
Are these molecules also compounds?
YES
NO
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