What is the atomic mass of an atom with 20 electrons 21 neutrons and 20 protons?

Explanation: An atom that contains 20 protons, 21 neutrons, and 20 electrons has an atomic mass of 41.

Which of the following is an isotope of an atom that has 20 protons 20 electrons and 20 neutrons?

Terms in this set (30) The most common form of calcium has 20 protons, 20 neutrons, and 20 electrons.

What is the mass number of an atom that consist of 20 protons 20 neutrons and 18 electrons?

C) Correct. Because the mass number of an atom is the sum of proton number and neutron number of the atom. So, 18 + 20 = 38.

What is the net charge on an atom with 20 protons 20 neutrons and 18 electrons?

Ca2+ represents an ion with 20 protons and 18 electrons. A calcium atom has 20 protons and 20 electrons. The 2+ charge next to the symbol indicates a loss of two electrons: 20-2=18. When atoms form ions, they lose or gain electrons.

Which element has 16 neutrons?

phosphorus
if you look at the periodic table, phosphorus has 15 electrons and protons, and 16 neutrons.

How many protons neutrons and electrons are in chlorine 37?

). Its nucleus contains 17 protons and 20 neutrons for a total of 37 nucleons. Chlorine-37 accounts for 24.23% of natural chlorine, chlorine-35 accounting for 75.77%, giving chlorine atoms in bulk an apparent atomic weight of 35.453(2) g/mol.

What has 18 protons and 18 neutrons?

Argon –
#18 – Argon – Ar.

What is the symbol of an ion with 20 protons 20 neutrons and 18 electrons?

Write the chemical symbol for an ion with 20 protons, 20 neutrons, and 18 electrons? Begin with the information that the ion has 20 protons. This indicates an atomic number of 20, which corresponds to calcium. The chemical symbol, then, will be Ca.

What has 16 protons and 18 neutrons?

sulfur
The atomic number of sulfur is 16. The ion has 18 electrons that mean sulfur carries the charge of -2.