A and 12
The symbol of a boron atom is "B", and the number of electrons in a neutral atom is the same as the number of protons, which equals the atomic number of boron: 5.
B and 5 electrons
The chemical symbol of uranium is U. Uranium has 92 electrons.
Electron configuration of uranium: [Rn]5f36d17s2
The number of electrons is equal to the number of protons which determines it's atomic number. Therefore, the element with 3 electrons is the one with 3 protons which has an atomic number of three which is Lithium (symbol - Li, amu - 6.941)
Antimony, symbol Sb has an atomic number of 51. This is the number of protons in the nucleus of an atom of Sb, and in a neutral atom it is also the number of electrons. The ground state electron configuration for antimony is: 1s22s22p63s23p63d104s24p64d105s25p3
Cl has 17I has 53 Xe has 54 and Sb has 51.
Antimony (Sb) has the atomic number of 51. The atomic number is the same as the number of protons in the atom (an the same as the number of electrons in the neutral atom).
The symbol of a boron atom is "B", and the number of electrons in a neutral atom is the same as the number of protons, which equals the atomic number of boron: 5.
The chemical symbol of uranium is 'U' and it has 92 electrons.
The chemical symbol of chlorine is Cl. Atomic number of it is 17. It has 17 electrons.
B and 5 electrons
The chemical symbol of uranium is U. Uranium has 92 electrons.
Xe, 54
Electron configuration of uranium: [Rn]5f36d17s2
For an neutral element that has the same number of electrons and protons, the element with 11 electrons is Na, sodium.
the chemical symbol fir antimony is Sb.