13 protons an easy way to remember what number of protons an element has is APES. A-atomic number, P-protons, E-electrons, S-same, so the atomic number and the numbers of protons and electrons are the same number
Beryllium has four protons.
15 protons
The element that has half as many protons as zinc would be copper. Zinc has 30 protons, while copper has 29 protons. This means that copper has one less proton than zinc, making it the element with half as many protons.
Dubnium has 105 protons.
Many isotopes have 18 neutrons.
Depends on the element. Every element has a unique number of protons within the nucleus of each atom. For example, Hydrogen atoms all have one proton in the nucleus. Take a look at the atomic number of an element on the period table. This number tells you how many protons are located in each atom of the material.
You can find out the symbol, name, mass, state, protons, neutrons, electrons, electronegativity, valence electrons, charge, and many other characteristics of the element considering the characteristics of other elements in the same group or period.
Group 17 elements (Halogens)Fluorine- Period 2Chlorine- Period 3Bromine-Period 4Iodine- Period 5Astatine- Period 6Ununseptium-Period 7There is 1 element from Group 17 that is part of Period 3.
54 Protons
Beryllium has four protons.
15 protons
For elements it's the atomic number not the "Period Number." This number tells you how many protons a single atom of that element has in its nucleus. The "period number" is a dimensionless quantity used in fluid dynamics.
Each chemical element has a specific number of protons; the number of protons is equal to atomic number of the element.
The element that has half as many protons as zinc would be copper. Zinc has 30 protons, while copper has 29 protons. This means that copper has one less proton than zinc, making it the element with half as many protons.
The number of protons is the atomic number of the element.
neptunium has 93 protons.
Nickel has 28 protons.