What element has 2 electrons in the first shell 8 electrons in the second shell and 8 electrons in their third shell?

What element has 2 electrons in the first shell 8 electrons in the second shell and 8 electrons in their third shell?

A calcium atom has 20 electrons. Two are in the first shell, eight in the second shell, eight in the third shell, and two in the fourth shell.

What element is a member of the boron family and is the most abundant metal in the earth’s crust?

aluminum
Have 3 valence electrons The most abundant member of the boron family is the widely used metal aluminum. Aluminum: It is the most abundant metal in Earth’s crust. It is often found combined with oxygen in bauxite.

Which element has 2 electrons in the first shell?

Helium
Hydrogen has 1 electron in the first shell (so one valence electron). Helium has 2 electrons — both in the first shell (so two valence electrons). Lithium has 3 electrons — 2 in the first shell, and 1 in the second shell (so one valence electron).

What has 16 protons and 6 valence electrons?

Sulfur
Sulfur is the second element in the sixteenth column of the periodic table. It is classified as a nonmetal. Sulfur atoms have 16 electrons and 16 protons with 6 valence electrons in the outer shell.

What element is In group 13 Period 2 of the periodic table?

The element at the position of period 2 and group 13 is boron, which is written as B, which is a metalloid. In period 2, the number of shells filled with electrons of all the elements is 2.

Why can the first shell only have 2 electrons?

3 Answers. Electrons are magnets, they have magnetic fields. Those fields have only two possible orientations, and a single orbital can only be occupied by two electrons if those orientations are mutually opposed.

How many electrons are in the first shell?

The first shell can have 2 electrons, the second shell has 8 electrons and the third shell has 8 electron also. No matter what, electron fill up the first shell and then move into the next shell and then the next one. To answer the question, the first shell would have 2 electron and then the second shell would have six.

How many electrons are in the M shell?

What is the capacity of M shell? Energy Level (Principal Quantum Number) Shell Letter Electron Capacity 1 K 2 2 L 8 3 M 18 4 N 32

How many electrons can the nth shell hold?

Each shell can contain only a fixed number of electrons: The first shell can hold up to two electrons, the second shell can hold up to eight (2 + 6) electrons, the third shell can hold up to 18 (2 + 6 + 10) and so on. The general formula is that the nth shell can in principle hold up to 2 (n2) electrons. How many valence electrons does f have?

How many shells does sodium have in the periodic table?

Sodium is in the third group in the periodic table. It meens that sodium has three shell. First shell – 2 electrons, second shell – 8 electrons, third shell (outer energy level) – 1 electron. How many electrons are in each of the first two shells if an atom contains eight electrons?