The quantum numbers used to describe the energy of the electrons of Fr are;
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 5s2 4d10 5p6 4f14 5d10 6s2 6p6 7s1
The quantum numbers of calcium are: Principal quantum number (n): 4 Angular quantum number (l): 0 Magnetic quantum number (ml): 0 Spin quantum number (ms): +1/2
Francium is a highly radioactive alkali metal element with the atomic number 87 and symbol Fr. It is the second rarest naturally occurring element in the Earth's crust and is extremely unstable, making it difficult to study. Francium was discovered in 1939 by Marguerite Perey.
The chemical symbol of francium is Fr correct !
l=0
Francium and lithium have the same number of valence electrons.
The atomic number of francium is 87.
7 is the atomic number of francium.
Francium is a non metallic element. Mass number of it is 223.
The atomic number of francium is 87.
Francium has 87 protons.
It is not true: francium has 87 protons.
Francium has 87 electrons.
Francium is the chemical element with the atomic number 87.
The four quantum numbers for germanium are: Principal quantum number (n) Azimuthal quantum number (l) Magnetic quantum number (ml) Spin quantum number (ms)
Francium is in the group 1 (alkali metals) of the periodic table.
The quantum numbers of calcium are: Principal quantum number (n): 4 Angular quantum number (l): 0 Magnetic quantum number (ml): 0 Spin quantum number (ms): +1/2
Francium has 87 positively charged protons and 87 negatively charged electrons, plus a varying number of uncharged neutrons, of which 136 is the commonest amount. Number of neutrons = Atomic mass of the isotope - 87