Helium, He, is neither covalent or ionic. It is a nobel gas, has a full outer shell 1s2, and has no known compounds
Nitrogen trichloride is a covalent compound.
covalent
The type of bond in which two atoms share electrons is called a covalent bond.
Polar Covalent.
H2CO3 is a covalent compound. It is composed of nonmetals, which typically form covalent bonds by sharing electrons.
The Answer is... covalent bonds
What is c2h2??? If you mean 'C2H2' , then this is ETH**Y**NE It is an AlkYne , neither an Alkane, nor an Alkene There is a TRIPLE bond between the two carbons. Structurally, H-C///C-H It archaic name is acetylene, as used in oxy-acetylene burners. NB Note the one letter 'Y' difference in the spelling. NNB Single letter elemental symbols are ALWAYS written as a CAPITAL letter. Hence carbon is 'C' not 'c' and hydrogen is 'H' not 'h' This is the agreed international standard, and as shown in the Periodic Table.
Hydrogen Sulphide is covalent.They are both non-metals.
P2H4 is a covalent compound. It is made up of nonmetals (phosphorus and hydrogen) which typically form covalent bonds by sharing electrons.
covalent
covalent because it is made up of only nonmetal elements
polar covalent are caused by