Answer:
NA
Explanation:
the other three options are alkali earth metals like magnesium (they are all in group 2). Sodium is the only one that is not an alkali earth metal.
Specific gravity is the ratio of the density of a substance to the density of a reference substance; equivalently, it is the ratio of the mass of a substance to the mass of a reference substance for the same given volume. Apparent specific gravity is the ratio of the weight of a volume of the substance to the weight of an equal volume of the reference substance.
It has zero dipole moment. Two N atoms in nitrogen molecule have zero electronegativity difference. The bond pairs of electrons are equally distributed between two N atoms.
Electrons are released, causing a flow of electrical current,<span>when sunlight strikes a photovoltaic cell.</span>
