Neon and the isotope will be Ne-20
20. the mass of an atom is determined by the sum of the number of neutrons and protons the atom has.
Boron typically has 5 neutrons, as the mass number is the sum of the protons and neutrons in the nucleus. In this case, with a mass number of 10, and Boron having 5 protons (atomic number 5), the number of neutrons is 5 (10 - 5 = 5).
A neutral atom of neon with atomic number 10 has 10 protons and 10 electrons. The mass number of 22 indicates the total number of protons and neutrons combined. Since the atomic number is 10, the number of neutrons is 22 - 10 = 12.
An atom of neon consists of 10 protons, 10 neutrons and 10 electrons (atomic number = 10; atomic mass = 20)
There are five neutrons in one atom of boron with a mass number of 10. Boron has an atomic number of 5, so 10 (mass number) - 5 (atomic number) = 5 neutrons.
Neon
20. the mass of an atom is determined by the sum of the number of neutrons and protons the atom has.
The mass number of this atom is 23, the sum of the number of protons and neutrons.
Boron typically has 5 neutrons, as the mass number is the sum of the protons and neutrons in the nucleus. In this case, with a mass number of 10, and Boron having 5 protons (atomic number 5), the number of neutrons is 5 (10 - 5 = 5).
10
The approximate mass of an atom that contains 10 protons and 11 neutrons is 21.
The symbol for the isotope would be B and the atomic number would be 5, as the mass number is the sum of the protons and neutrons in the nucleus, so in this case: 5 protons + 10 neutrons = mass number 15.
If we give them relative numbers, the proton has a mass of 1.0073, the neutron has 1.0087 and the electron has 5.486 X 10 to negative 4.
The mass number of an atom is the number of protons plus the number of neutrons in its nucleus. So an atom with 15 protons and 10 neutrons would have a mass number of 15 + 10 = 25.
To find the number of protons, you need to subtract the number of neutrons from the mass number. In this case, the atom has a mass number of 19 and 10 neutrons, which means the number of protons is 19 - 10 = 9 protons.
An isotope of lithium with an atomic mass of ten would have an atomic number of 3, meaning it has 3 protons. To find the number of neutrons, subtract the atomic number from the atomic mass: 10 (atomic mass) - 3 (atomic number) = 7 neutrons. Therefore, an isotope of lithium with an atomic mass of ten would have 7 neutrons.
sodium has more protons and neutrons. electrons have practically no mass, valence electrons are just outer orbital electrons. sodium has 11 protons, 11 electrons, and 12 neutrons. Mass is 23. neon has 10 protons, 10 electrons, and 10 neutrons. Mass is just 20. The neon atom has 10 protons and 10 neutrons for a mass number of 20. The sodium atom has 11 protons and 12 neutrons for a mass number of 23. The number of valence electrons has no bearing on mass number or atomic weight.