What is a metalloid in Period 2?

The only metalloid that is located at period 2 is boron (B).

What element is in Group 2 and period 3 of the periodic table?

magnesium
Hence the name of the element is magnesium.

Which are the metalloids in the second and third period?

The metalloids in the second and third periods = Boron (second period), Silicon (third period) Was this answer helpful?

What is the metalloid found in period 3?

Silicon
One metalloid of period 3 is Silicon.

What element is in period 3?

The third period contains eight elements: sodium, magnesium, aluminium, silicon, phosphorus, sulfur, chlorine, and argon. The first two, sodium and magnesium, are members of the s-block of the periodic table, while the others are members of the p-block.

Why is magnesium in Group 2 and period 3 on the periodic table?

All the elements within a group have the same number of electrons in their outermost shell. Magnesium is in group 2 because a magnesium atom has 2 electrons in its outer shell/outermost energy level.

How many metalloids are in the second period?

Also, Boron is the only metalloid in the second period. Therefore, we can conclude that Lithium and Beryllium are the elements in Period $2$ that are metals.

How many metalloids are there in the second period?

There are 8 metalloids in the periodic table namely Boron, Silicon, Germanium, Arsenic, Antimony, Tellurium, Polonium and Tennessine.

What is period 2 on the periodic table?

The second period contains the elements lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine, and neon. In a quantum mechanical description of atomic structure, this period corresponds to the filling of the second (n = 2) shell, more specifically its 2s and 2p subshells.

Which element is found in Group 2?

alkaline-earth metal, any of the six chemical elements that comprise Group 2 (IIa) of the periodic table. The elements are beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra).