Radium lose two electrons, the cation is Ra2+.
The ionisation energy required to lose four electrons is generally very high. Hence carbon doesn't lose four electrons.
Actinides and lanthanides lose electrons and form cations.
Silicon (Si) can gain or lose 4 electrons. It can either gain 4 electrons to have a stable octet configuration or lose 4 electrons to achieve a stable configuration.
Potassium will lose electrons when reacting with bromine. Potassium is a metal and tends to lose electrons to achieve a stable electron configuration, while bromine is a nonmetal that tends to gain electrons to achieve a stable electron configuration.
Lose electrons is oxidation. To gain electrons is reduction.
Atoms of metallic elements tend to lose electrons to form positively charged ions. This is because metallic elements have few electrons in their outer shells, making it easier for them to lose electrons and achieve a stable electron configuration.
You question is a bit incorrect. Beryllium is a metallic element in Group (II) of the Periodic Table. Being in Group (II) it will have a strong tendency to loose electrons(ionisation). In its neutral state beryllium has the electron structure of 1s2, 2s2, This means that its inner most electron shell (1s) contains two electrons. Its outer most electron shell (2s) also contains two electrons. When beryllium ionises two electrons , they are 'lost' from the outer most (2s) electron shell. They are further from the nucleus of the atom and are not so strongly held.!!!!! When these two electrons have 'gone' , the Beryllium atom is now the Beryllium ION. (It is no longer an atom). Formulaically it is written as Be(g) = Be^(2+) + 2 e^(-) So for beryllium atom to become a Beryllium ION it LOSES TWO electrons.
Polonium can lose two or four electrons.
Uranium loose electrons becoming a cation.
it will lose 3 electrons
Actinides and lanthanides lose electrons and form cations.
When atoms lose electrons cations are produced.
Radium lose two electrons, the cation is Ra2+.
The ionisation energy required to lose four electrons is generally very high. Hence carbon doesn't lose four electrons.
Silicon (Si) can gain or lose 4 electrons. It can either gain 4 electrons to have a stable octet configuration or lose 4 electrons to achieve a stable configuration.
it loses electrons