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Calcium has 20 protons and electrons and a variable number of neutrons, depending on the isotope.
Calcium has 20 protons, 20 electrons and 20 neutrons in its most commonly found isotope.
7 protons, 7 neutrons and 7 electrons
4 protons, 4 electrons and 6 neutrons.
it has 44 electrons 57 neutrons and 44 protons
Calcium has 20 protons and electrons and a variable number of neutrons, depending on the isotope.
20
Calcium has 20 protons and electrons and a number of neutrons different for each isotope..
Calcium has 20 protons, 20 electrons and 20 neutrons in its most commonly found isotope.
Electrons have no relevant mass, and protons and neutrons both have the mass of 1u. If Calcium has the number 20, it has 20 protons (and electrons). It's mass is about 40u. Core Mass - Protons = Neutrons 40u - 20u = 20u, this means Calcium has 20 electrons, 20 protons and 20 neutrons.
20 protons, 20 electrons, and usually 20 neutrons
20 protons and 18 electrons
44
1) it's spelt Calcium and 2) 20 protons, 20 electrons, 20 neutrons
Calcium has 20 protons, 20 electrons and 20 neutrons in its most commonly found isotope.
There are 20 protons, neutrons and electrons in calcium. It has 20 as atomic number.
There are 20 p , n , e- in an atom of calcium. Its atomic number is also 20.