There are more then two: potassium and lithium are the nearest, and there are rubidium, cesium, and francium as well in this group.
Sodium and bromine are chemical elements, not properties; the chemical reaction between sodium and bromine is a chemical process, not a property.
Sodium chloride is a chemical compound (NaCl), not a property.
I would expect all elements in group 1 to have similar chemical behavior to that of sodium, except for hydrogen. Hydrogen is not a metal, but has only 1 valence electron like the other elements in group 1.
Potassium, located right below sodium on the periodic table, has chemical properties most similar to sodium. Both elements belong to the alkali metal group and exhibit similar reactivity, such as readily losing their outer electron to form a +1 cation.
Sodium perborate is an oxydant.
Na is the chemical symbol for the element sodium.
Chlorine and sodium are natural chemical elements.
The property exhibited when a substance reacts violently with sodium is known as reactivity. This usually indicates that the substance is highly reactive and can form a strong chemical reaction with other elements or compounds.
True, elements in the same chemical family have similar electron configurations, which can result in similar spectral characteristics. For example, alkali metals like sodium and potassium have similar line spectra due to their similar outer electron configurations.
Potassium can replace sodium in certain chemical reactions due to its similar properties. Both elements belong to the same group of the periodic table and can exhibit similar chemical behavior, such as forming ionic compounds with chlorine to produce salts.
Its a physical
See this link.