No!
No, hydrogen does not belong to group 7 of the periodic table. It is placed in group 1 since it has 1 electron in its outer shell.
because hydrogen is in the form of gas and thus we can conclude that it is a non- metal
Hydrogen's properties differ so much from other elements that it can't be grouped.
The alkali metals are the metals in Group 1 (the first column of the periodic table). Hydrogen is also in Group 1, and so is technically considered to be part of the alkali metal group/family. Hydrogen is in fact a non-metal, however, and does not generally exhibit behavior similar to the other Group 1 elements.
Ypu think probable to hydrogen.
Hydrogen is allocated to group 1, carbon to group 14 and oxygen to group 16.
First of all, don't ask us the questions in your homework. Secondly, you should be able to tell which three are elements and which is a compound. If not, you probably shouldn't be taking a chemistry class.
Hydrogen is generally considered the most anomalous element, because its most abundant isotope contains no neutrons and its ion contain no electrons.
Noble gases are in the group 18 of the periodic table and halogens in the group 17. Carbon is in the group 14.
Hydrogen is mostly said to belong to Alkali metals group because it has one electron in its outermost shell. and has an oxiation state of +1. But it also sometimes place on the top of Halogens since it also one less electron than completion of orbital and sometimes an oxidation state of -1. Hydrogen is a controversial element for periodic table.
There are two elements in the first period, hydrogen and helium.
Uranium, boron, hydrogen are chemical elements. Salt (NaCl) is a chemical compound.