Please help me with a science chart

Grouping of elements in the Science chart.

The elements can be grouped in the science chart as follows,

Group I elements are called as Alkali metals.

Group I elements include 6 elements such as Lithium(Li), Sodium(Na),Potassium(K),Rubidium(Rb),Cesium(Cs) and Francium(Fr), They form alkali and hence they are termed as Alkali metals.

Group II elements are called as Alkaline Earth Metals.

Group II elements include 6 elements such as beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra), They form alkali solutions and hence they are called as Alkali earth metals.

Group 18 or zero group or Helium group elements are called as noble gases.

Zero group elements include 6 elements such as helium, neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn), They didn't like to react and hence they are used less.

Group 13 or Boron Group elements are called as

Boron group includes 6 elements such as boron (B), aluminium (Al), gallium (Ga), indium (In), thallium (Tl),nihonium (Nh).They form metalloids,

Group 16 or Oxygen Group elements are called as Non Metals.

Group 14 or Carbon Group elements are called as Metals.

Group 3 to Group 12 elements are called as Transition Metals.

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.