Beryllium, Magnesium, Calcium, Strontium, Barium and Radium
Argon
Each caesium atom loses an electron and the oxygen atom gain two electrons (for Cs2O).
An ionic bond is formed between a metal and a non metal. The METAL loses an electron (or electrons) and it becomes positively charged.
The element that is oxidized in the reaction 4Al + 3O2 → 2Al2O3 is aluminum (Al). In this reaction, aluminum loses electrons and undergoes oxidation to form aluminum oxide (Al2O3).
Each iron atom loses three electrons.
Lithium loses one electron when it reacts
A Group 6A element gains two electrons A Group 2A element loses two electrons A Group 3A element loses three electrons A Group 3A element loses three electrons group 1a element loses one electron group 7a gains one electron
Sodium loses one electron when it reacts with a nonmetal.
a binary ionic compound
Argon
Argon
Iron reacts with oxygen to form Fe2O3 also known as rust. Oxygen requires two electrons to fill it's valence shell so iron loses electrons.
Generally metals lose electrons and nonmetals gain electrons.
On the left side.
gold
Silver is a metal therefore it loses an electron when it reacts to form Ag+
Well it depends upon which element you are talking about Eg flourine atom has 9 protons and electrons normally configuration will be 2,8,1 But if u r talking about a stable fluorine electron, configuration will be 2,8 This happens since the outermost octate of fluorine is not filled completely so it is not stable in it's structure so it loses the 1 extra electron in it's last octate and becomes stable gaining a negative charge Ultimately no. Of levels vary from element to element