How many electrons are there in 131i?

53 electrons
I is iodine. Iodine is element number 53. Iodine has 53 protons and 53 electrons (because it has no charge the number of protons equals the number of electrons). Iodine-131 has 131 protons and neutrons.

How many electrons does a magnesium atom have?

12 electrons
The most common and stable type of magnesium atom found in nature has 12 protons, 12 neutrons, and 12 electrons (which have a negative charge).

How many electrons does magnesium 26 have?

Mg-26 has 12 protons and 12 electrons when neutral.

How many electrons does astatine have?

85 electrons
Astatine atoms have 85 electrons and the shell structure is 2.8.

How many neutrons are in magnesium?

12 neutrons
The most common and stable type of magnesium atom found in nature has 12 protons, 12 neutrons, and 12 electrons (which have a negative charge). Atoms of the same element with different neutron counts are known as isotopes.

How many protons neutrons and electrons are there in 131i?

Answer: Iodine has 53 protons and 53 electrons (because it has no charge the number of protons equals the number of electrons). Iodine-131 has 131 protons and neutrons. Iodine-131 has 131 minus 53 protons = 78 neutrons.

Does magnesium have 10 electrons?

Magnesium has two electrons in its outer shell as it is in group 2 of the periodic table, which it loses, so its outer shell is full (2,8) and it has a charge of +2, as it still has 12 protons (positive charges) and now has only 10 electrons (negative charges).

Why does magnesium have 12 electrons?

Chemistry mcqs the number of electron levels in a. For an electron, the spin is always 1/2. Sodium atoms have 11 protons and so 11 electrons. That means there are 12 electrons in a magnesium atom.

What is magnesium electrons?

Magnesium has an atomic number of 12 and it contains a total number of 12 electrons.

How many electrons does magnesium 24 have?

Magnesium, in its elemental form, has 12 protons and 12 electrons.

How many valence electrons does magnesium have?

2 valence electrons
Magnesium has atomic number 12. Its electronic configuration is 2,8,2 . Thus, it has 2 valence electrons.

Does astatine have 7 valence electrons?

Astatine atoms have 85 electrons and the electronic shell structure is [2, 8, 18, 32, 18, 7] with Atomic Term Symbol (Quantum Numbers) 2P3/2….Astatine Atomic and Orbital Properties.

Atomic Number 85
Electron Configuration [Xe] 4f14 5d10 6s2 6p5
Valence Electrons 6s2 6p5
Oxidation State -1 1;3;5;7