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How many shells do calcium have?

Calcium has 20 electrons in its electronic configuration, therefore it has 20 shells.


How many shells do 20 electrons need?

20 electrons would need 4 shells. The first shell can hold up to 2 electrons, the second shell can hold up to 8 electrons, the third shell can hold up to 18 electrons, and the fourth shell can hold up to 32 electrons.


How Many Shells Of Electrons Does Iron Have?

iron has 4 shells because there are 30 electrons.


How many electrons shells does iodine have?

46


How many shells and electrons does tunsten have?

Tungsten has 74 electrons!!


Do atoms with many electron shells let go of their electrons easier than fewer shells?

More the number of shells in an atom, more away will be the electrons from the nucleus. Hence, weaker will be the attraction between nucleus and outermost electrons. So atom with more shells will let go their electrons easier than atoms with fewer shells.


How many shells are there in element mercury?

Mercury has 80 electrons which means there are 6 shells in a neutral atom of mercury.


How many shells does berkelium have?

Berkelium has 97 electrons, which means it has 7 electron shells.


How many core shells does calcium have?

Calcium is in group 2, period 4 of the periodic table. It has an electron configuration of 1s2 2s2 2p6 3s2 3p6 3d10 4s2. This shows us that 4 is its valence shell. Therefore, the other 3 shells are its core shells.


How many electrons are in the nucleus of an atom with the atomic number of 20?

None. Electrons are found in energy levels outside the nucleus, not in it. An atomic number of 20 tells you there are 20 protons in the nucleus of an atom, and 20 electrons in energy levels (or shells or orbitals depending on which model of the atom you are using) outside the nucleus.


How many electrons are in the outer shells in fluorine?

1


How many electron shells would be completely filled by a neutral xenon atom how many would be left over?

A neutral xenon atom has 54 electrons. Two of its electron shells would be completely filled, with 2 and 8 electrons, leaving 44 electrons in the remaining electron shells.