The metal that has very low melting point and its periodic position is closer to a metalloid is :

Solution

Chemistry ma’am · 3 steps

Gallium melts at about 30 °C, so it melts in your palm, and it sits right next to germanium.

1. Two conditions. The answer must be a metal. It must have a very low melting point, and it must sit beside a metalloid in the periodic table.

   Element	Type	Melting point	Position
   Al	metal	660 °C, high	group 13, beside Si
   Ga	metal	29.8 °C, very low	group 13, period 4, beside Ge
   In	metal	157 °C, low	group 13, beside Sn (a metal)
   Se	non-metal	221 °C	group 16

2. Why gallium is odd. In solid gallium the atoms pair up into Ga₂ units. This structure breaks apart easily, so gallium melts just above room temperature but stays liquid up to about 2200 °C.
3. So. Only gallium meets both conditions: it is a metal, it melts at about 30 °C, and it sits next to germanium, a metalloid. The answer is (b).

The idea to keep. Remember gallium as the group 13 oddity: it melts at about 30 °C and boils above 2200 °C, so it has the widest liquid range of any element. That is why it is used in high-temperature thermometers.

Answer from the NTA final answer key. Solution by PrepWiser.