Zero.
It has 4 electrons and thus it's electron configuration is 1s2 2s2. Each s orbital can only hold 2 electrons and since each has 2, there are are no unpaired electrons.
There are no unpaired electrons in strontium.
Nickel has two unpaired electrons.
Barium has 0 unpaired electrons. It has a full outer shell of electrons, which is why it is a stable element.
Beryllium has 4 electrons.
In group 3A elements, or elements in group 13, have only one unpaired electrons.
Beryllium has 4 protons. Since protons are paired in pairs of 2 within the nucleus, there are no unpaired protons in beryllium.
There are no unpaired electrons in strontium.
three unpaired electrons
Aluminum has three unpaired electrons.
Germanium has 4 unpaired electrons.
There are three unpaired electrons in an arsenic atom. Arsenic has five valence electrons, with two paired and three unpaired electrons.
6 unpaired electrons
Phosphorus has three unpaired electrons in its ground state.
Nickel has two unpaired electrons.
Xenon has eight unpaired electrons.
Neodymium (Nd) has 3 unpaired electrons.
Titanium (Ti) has four unpaired electrons.