Answer:vapor
Explanation: Because it is
Some elements can have to electrons and be stable in their shell they are stable in a duplet state instead of a octet state
Answer:
SiH4
Explanation:
We must remember that the magnitude of intermolecular forces play a vital role in the determination of the boiling point of a substance.
The Si-H bond is the least polar among all the bonds in compounds listed in the question. This is because the electronegativity difference between silicon and hydrogen is very slim resulting in the formation of a nonpolar covalent bond.
The other compounds possess more polar bonds hence have a greater degree of dipole interaction between molecules and a consequently higher boiling point than SiH4.
Answer:
B
C
Explanation: they both are things that we understand but dont know how they are fully made of.