Germanium
Boron is an atom or element, and it contains protons, electrons, and neutrons.
An atom of xenon contains 54 electrons, the atomic number of xenon.
19 electrons, 19 protons and 20 neutrons
Potassium is a s block element. It has 19 protons in a atom.
Germanium
Magnesium atoms have 12 electrons.
This is an artificially prepared isotope of phosphorus, P-30.
19
It contains 10 protons and 10 electrons (no. of protons =no. of electrons in ground state) Number of neutrons=Mass number of element- number of protons =19-10 =9
molybdenum
Boron is an atom or element, and it contains protons, electrons, and neutrons.
mg
If you don't specify what element you are talking about, we have no way of knowing the charge of an atom with 19 electrons.
An atom of xenon contains 54 electrons, the atomic number of xenon.
Gallium
19 electrons, 19 protons and 20 neutrons