Since Selenium is a Chalcogen (meaning it's in group 6A on the Periodic Table), it gains 2 electrons to form an ion with a charge of -2.
Selenium should gain two electrons and lose six electrons to achieve a noble gas electron configuration.
an ionic bond forms
Electrons are both gained and lost. Electrons are both gained and lost.
An atom that has gained an electron becomes a negatively charged ion.
Usually three will be lost.
Selenium should gain two electrons and lose six electrons to achieve a noble gas electron configuration.
ions. (atoms that have lost or gained electrons)
an ionic bond forms
Electrons are both gained and lost. Electrons are both gained and lost.
When an atom looses an electron is called "a cation, when gains is called an "anion".
Electrons are the ones gained or lost in a chemical reaction. Electrons are gained in oxidation and lost through the chemical reaction known as reduction.
some are made losing lots of yams did you know that
loses 2 electrons to form a calcium ion with 2+ charge
An atom that has gained an electron becomes a negatively charged ion.
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it has gain 4 electrons
-3 electrons are gained,i.e,3 electrons are lost by Al and 3 electrons are gained by the other atom nearby.