the mantle is much different from the crust, so i wouldn't think there would be any similarities.
answer: option (c) is the correct answer.
atomic number of lithium is 3 and electrons in its shell are distributed as 2, 1. therefore, in order to gain stability lithium readily loses one electron and becomes a cation.
whereas noble gases already have completely filled shells so, they don't need to gain or lose electrons.
group 16 elements are known as chalcogens which include oxygen, sulfur, selenium, tellurium, and polonium whereas fluorine is a group 17 element also known as halogen group and not chalcogens.
magnesium loses two electrons and thus it becomes a cation and not anion.
hence, we can conclude that out of the given options, the statement lithium is an alkali metal that loses 1 electron to become a cation to become stable is true regarding main group families of the periodic table.
answer: the molar mass of the unknown gas is 118.26 g/mol.
graham's law: the rate of diffusion of gaseous substance in inversely proportional to the square root of its molecular mass.
rate of the unknown gas ,r=r
rate of the hcl gas,r' = 1.8r
molar mass of unknown gas = m
molar mass of the hcl gas = 36.5 g/mol
according to graham's law:
the molar mass of the unknown gas is 118.26 g/mol.
what will accompany the products as a result of this reaction? <...