Match the element with its description.

match
term
definition

potassium
a) malleable and highly reactive

barium
b) great conductor of heat and electricity

boron
c) has properties of both metals and nonmetals

neon
d) nonreactive gas

Explanation:

Potassium

Malleable and highly reactive.

It is present in group one.

It has one valance electron.

It lose one electron and readily react with other metals.

Barium

Great conductor of heat and electricity.

Barium is present in group two.

It has two valance electrons.

It is alkaline earth metal.

Boron

C) Has properties of both metals and nonmetals.

Boron in present in group 13.

It is metalloid because it is present in crystalline form like metals and very low conductivity like non metals.

Neon

It is non reactive gas.

It is present in group 18.

Its octet is complete and non reactive noble gas.

the answer would be b i believe

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

if it's not useful, feel free to report for mistake in answer.