4 Element X is represented by 13X.
Which statement about element X is correct?
sk 매
A An...
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4 Element X is represented by 13X.
Which statement about element X is correct?
sk 매
A An atom of X contains 13 protons and 13 neutrons.
B An atom of X contains 27 protons and 13 electrons.
18
C X forms an ion by gaining electrons.
DX is placed in Group III of the Periodic Table.
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