Answer:
Atom
Explanation:
my theory:
Atoms are their own substance. It's atom because if you tried to break an atom, you would be going into nuclear physics. That would be unsafe and dangerous.
If the number of valence electron is one than it will be placed in group IA. elements of group IIA will have two valence electrons and so on....
Here is the full question with choices: When hydrogen is attached to the more highly electronegative oxygen atom in a water molecule, __________.?
A. the hydrogen atom becomes partially positive
B. the electronegative atom becomes strongly positive
C. the hydrogen atom becomes partially negative
D. the oxygen atom becomes partially negative
The answers are A and D. The oxygen holds onto the electrons more of the time so is slightly negative, making H slightly positive and thus making a polar covalent bond.
1. would be deposition
2.sublimation
