The answer is around 4.12x10^23 molecules
Answer:
NH3
Explanation:
The "tri" attached to the trihydride means 3. So your hydrogen is going to have 3 atoms.
In the ground state, only one. But for bonding, all three valence electrons are used, and the atom acquires a slightly excited state.
Answer:
B .it is an exothermic reaction
Explanation:
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Answer:
Its 19.
Explanation:
K (potassium) has 19 electron according to the atomic number in the periodic table. The atomic number tells you the number of protons and electrons.
