Calcium has an atomic number of 20. Thus calcium's number of protons is 20. To balance out these protons' positive charges, calcium also is found with 20 negatively charged electrons.
The element calcium has 20 protons and 20 electrons.
Calcium (element number 20) has 20 protons and 20 electrons.
Um, the element calcium? Protons, neutrons, electrons..
Calcium is an element, which means that it is made up protons/electrons and neutrons. Each calcium atom contains a total of 20 protons/electrons, and 20 neutrons.
Calcium has twenty protons and twenty electrons. The main isotope of calcium also has twenty neutrons.
Calcium has 20 protons and electrons and a variable number of neutrons, depending on the isotope.
Calcium (element number 20) has 20 protons and 20 electrons.
Um, the element calcium? Protons, neutrons, electrons..
Calcium has 20 protons and electrons. The symbol for calcium is Ca and its atomic number is 20.
Calcium is an element, which means that it is made up protons/electrons and neutrons. Each calcium atom contains a total of 20 protons/electrons, and 20 neutrons.
Several can. Perhaps you meant to ask which has 20 protons, in which case the answer is calcium. (Calcium is also one of the elements that can have 20 neutrons, but it's not the only one.)
Calcium has twenty electrons in each atom.
The chemical element with 20 protons and 20 neutrons is Calcium(Ca). The number of protons is equal to the number of electrons, and the number of electrons is equal to the atomic number.
1) it's spelt Calcium and 2) 20 protons, 20 electrons, 20 neutrons
Calcium has twenty protons and twenty electrons. The main isotope of calcium also has twenty neutrons.
There are 20 protons in a calcium atom. You can find the number of atoms in any element by looking at the atomic number which is in the top right corner of the element's box on the periodic table. e.g. Ca 20 40.078
carbon has : 36000 protons 124000 electrons 348850 calcium
Well, first, I feel I should point out that if the atomic number is not 20, then it's not calcium.A neutral atom of calcium has 20 protons and 20 electrons.