How many protons, neutrons&electrons does helium have?

Answer Helium has two protons, three neutrons and three electrons, according to Dixie State College. Protons always equal an atom's atomic number. To find neutrons, subtract the number of protons from the... Read More »

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What is the number of protons&neutrons in helium?

Helium has the atomic number two, which means it has two protons. It also has two neutrons. Its atomic weight is four--the sum of the protons and neutrons. Helium is the second most abundant elemen... Read More »

How many protons& neutrons are in 121-Te?

Tellurium-121, or 121-Te, has 52 protons and 69 neutrons. It is a radioactive isotope with a half-life of about sixteen days. It is one of 48 tellurium isotopes, only eight of which are considered ... Read More »

How many protons and neutrons are in Te?

The atomic number of Tellurium (Te) is 52, which means it has 52 protons. Its most common form has an atomic mass of 128, which means it has 76 neutrons. The atomic mass of its isotopes ranges from... Read More »

How many protons and neutrons are in 11B?

The boron-11 isotope, also called B11 or 11B, has 5 protons and 6 neutrons. The element's other isotope, boron-10, has 5 protons and 5 neutrons. Of the two isotopes, B11 is more abundant, making up... Read More »