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How many electrons are gained or lost when selenium forms an ion?
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.
What ion would be formed from oxygen how many electrons would be lost or gained?
Oxygen is in group 6, and so it has 6 valence electrons. It needs to more to make an octet, so it will GAIN TWO electrons, and become negative 2, i.e. O^2-.
Will electrons be gained or lost if the atom of oxygen becomes stable?
the atomic no of oxygen is 8 to reach the nearest noble gas electronic configuration it excepts 2 electrons and becomes isoelectronic to Neon.
How many electrons must be gained or lost for Mg to attain a noble gas?
It should loose 2 electrons to become a noble gas.
What do atoms with same number of protons but different electrical charges called?
Ions are atoms of the same element that have the same number of protons, but have either lost or gained one or more electrons, causing them to have different electrical charges. If they have lost electrons, they are negative ions, and if they have gained electrons they are positive ions. A "+" is used to denote an ion. For example:Barium - Ba+2 (has gained 2 electrons)Copper (I) - Cu+1 (has gained 1 electron)Copper (II) - Cu+2 (has gained 2 electrons)Nitrate - NO3-1 (has lost 1 electron)Nitride - N-3 (has lost 3 electrons)Nitrite - NO2-1 (has lost 1 electron)
How many electrons are gained or lost when selenium forms an ion?
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.
What do the oxidation numbers 2 and -2 imply?
+2 implies that 2 electrons are lost by the element. -2 implies that 2 electrons are gained by the element
What do the oxidation numbers of 2 and -2 imply?
+2 implies that 2 electrons are lost by the element. -2 implies that 2 electrons are gained by the element
What happens to substance when it is oxidized?
Oxidation is the loss of electrons. Reduction is the gain of electrons. The oxidizing agent is reduced. The reducing agent is oxidized. Cu goes from 0 to +2, it lost electrons S went from +6 to +4, it gained electrons I went from 0 to +5, it lost electrons N went from +5 to +4, it gained electrons.
What ion would be formed from oxygen how many electrons would be lost or gained?
Oxygen is in group 6, and so it has 6 valence electrons. It needs to more to make an octet, so it will GAIN TWO electrons, and become negative 2, i.e. O^2-.
Will electrons be gained or lost if the atom of oxygen becomes stable?
the atomic no of oxygen is 8 to reach the nearest noble gas electronic configuration it excepts 2 electrons and becomes isoelectronic to Neon.
What is the number of electrons that were lost gained to form Mg2 plus?
Mg 2.8.2 likes to lose 2 electrons to become Mg 2.8, when it loses them it becomes an Mg 2+ ion.
What are two ways electrons can be gained or lost from an atom?
An electron can be gained or lost from an atom for two reasons: 1. A random number of atoms can be close together will have electrons bumping into each other. Since all electrons have a negative charge, they will have magnetic effects on one another, and will push eachother of the outer shell of their atoms and into different ones. 2.Two or more atoms can bond together so that both atoms in turn have a balanced number of electrons.
Indicate the number of electrons lost or gained by calcium and give the charge of the ion it forms?
loses 2 electrons to form a calcium ion with 2+ charge
How does the oxidation number indicate if an electron will be lost or gained?
The increase in oxidation number indicates loss of electrons, while a decrease indicates gain of electrons. For example, if an atom's oxidation number increases from +2 to +4 in a reaction, it has lost two electrons. Conversely, if the oxidation number decreases from +4 to +2, it has gained two electrons.
What is the symbol for a sodium atom which has gained two electrons?
surely i don't know sodium atom which can be gained 2 electrons but anyway i thought the answer is Na+2
How many electrons must be gained or lost for Mg to attain a noble gas?
It should loose 2 electrons to become a noble gas.
