Einsteinium has a proton number of 99, and can be found in the actinide group on the Periodic Table.
99
they provide a positive charge for the element
Sodium does.
Magnesium
The number of protons is the atomic number of the element.
The number of protrons of whichever element you choose. Each element has an exact number of protrons.
Protons are components of the atomic nucleus of any chemical element.
Ca2+
Oxygen isotope 16
an element is made of protrons nutrons and electrons...
Magnesium is a metal element. There are 24 electrons in a single atom.
Lithium is a metal element. There are 3 electrons in a single atom.