A neutral charge... No charge at all.
a neutral one
+4
Helium has two neutrons and two protons in its nucleus.
The mass is protons + neutrons. So, if the mass is 9 and it has 5 neutrons, then there must be FOUR (4) protons. This would be the element beryllium (Be).
There are four protons. Also four neutrons and four electrons
The isotope berrylium-8 has four each of protons, electrons, and neutrons.
Scientists have designated electrons as having a negative charge and protons as having a positive charge. One positive proton can hold one negative electron in orbit. Thus, an atom with one proton in its nucleus normally will have one electron in orbit (and be labeled a hydrogen atom); an atom with ninety-four protons in its nucleus will normally have ninety-four electrons orbiting it (and be labeled a plutonium atom).
+4
Helium has two neutrons and two protons in its nucleus.
The mass is protons + neutrons. So, if the mass is 9 and it has 5 neutrons, then there must be FOUR (4) protons. This would be the element beryllium (Be).
There are four protons. Also four neutrons and four electrons
There are 16 protons, 16 neutrons and 16 electrons in a Sulfur atom. *note it's atomic number- this is the number of protons in an atom of an element. There must be the same number of electrons to balance the charge. The atomic weight minus the number of protons gives you the number of neutrons
3
The atomic number is the number of protons, so in this case it is 2, which is Helium. The charge or ionization of the atom is the difference between the number of protons and the number of electrons; in this case, they are the same, so the atom is neutral (not ionized). The atomic mass number is the sum of the protons and neutrons, so in this case 4. Thus, you have a non-ionized atom of Helium-4.
The isotope berrylium-8 has four each of protons, electrons, and neutrons.
The number of protons determines the atomic number. Since there are for protons, the atomic number is four, and the element is beryllium, symbol Be. The atomic mass number is the number of protons plus neutrons, so in this case it is 9. There are an equal number of protons and neutrons, so there is not charge. The symbol looks like this:94Be
protons and neutrons are moade of quarks, of which there are four kinds. the first two are the only ones you need to know about, because the other two aren't very practical and should never have existed.
Scientists have designated electrons as having a negative charge and protons as having a positive charge. One positive proton can hold one negative electron in orbit. Thus, an atom with one proton in its nucleus normally will have one electron in orbit (and be labeled a hydrogen atom); an atom with ninety-four protons in its nucleus will normally have ninety-four electrons orbiting it (and be labeled a plutonium atom).
Beryllium has four protons. Be9 also has five neutrons, for a total mass of 9.