The atom that has a Atomic Number of 6 in the Periodic Table - Carbon
Helium has two neutrons and two protons in its nucleus.
There are four protons. Also four neutrons and four electrons
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).
A neutral atom must contain an equal number of electrons because it is a neutral atom.
The isotope berrylium-8 has four each of protons, electrons, and neutrons.
+4
In a neutral atom, the number of electrons is equal to the number of protons. So, in an atom with three protons, it would contain three electrons. The number of neutrons does not affect the charge or number of electrons in the atom.
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
Helium has two neutrons and two protons in its nucleus.
There are four protons. Also four neutrons and four electrons
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).
A neutral atom must contain an equal number of electrons because it is a neutral atom.
One beryllium atom has four (4) electrons, four (4) protons, and three (3), five (5) or six (6) neutrons, depending on the isotope being considered. The only stable isotope is Beryllium-9 (with 5 neutrons) but beryllium-10 (with 6 neutrons) has a relatively long half-life of 1.51 million years.
A lithium atom contains three protons, three electrons, and usually four neutrons in its nucleus. The electrons occupy energy levels around the nucleus in a specific configuration.
The isotope berrylium-8 has four each of protons, electrons, and neutrons.
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.
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