7Li or lithium-7.
The mass number of an isotope is the sum of the protons and neutrons in its atomic nuclei. The atomic number of Li is 3, so lithium-7 would have 3 protons and four neutrons.
Li-6 has 3 neutrons and Li-7 has 4 neutrons.
Lithium has 3 protons, 4 neutrons, and 3 electrons.
Calcium (Ca) is the metallic element in period 4 with 20 electrons.
All beryllium atoms have 4 protons and 4 electrons. The number of neutrons is characteristic of a particular isotope, not of beryllium as a whole, and may be determined by subtracting 4, the number of protons, from the mass number of the isotope.
In a He-4 atom, the nucleus contains two protons and two neutrons. The protons have a positive charge, while neutrons are neutral.
Beryllium.
your mother
sodium
Any element can have 4 neutrons but most of them aren't metallic. Anyway's on the periodic table it would be Be and that stands for Beryllium
BerylliumThe fourth element in the Periodic Table, Beryllium has four neutrons and electrons, but it doesn't necessarily have four protons. Beryllium is also a type of metal.
Li-6 has 3 neutrons and Li-7 has 4 neutrons.
There are 5 neutrons in beryllium 4 electrons and 4 protons.
Beryllium has 4 protons, 5 neutrons and 4 electrons.
4 neutrons in 3Li7 isotope.
4 protons, 4 electrons and 5 neutrons
4 protons, 4 electrons and 6 neutrons.
An atom of beryllium has 4 neutrons. It has an atomic number of 4, which corresponds to the number of protons in its nucleus.