How many electrons are gained or lost by iodine?
In order for Ca to become the ion Ca2+ , the calcium atom must lose 2 electrons. (Electrons have a negative charge, so when an atom loses 2 electrons, its ion becomes more positive.) In order for I to become the ion I1− , the iodine atom must gain 1 electron.
How many electrons must be lost or gained by S to attain a noble gas electron configuration?
a. A sulfur atom has 6 valence electrons and gains 2 electrons to attain a noble-gas configuration.
How many electrons are gained or lost in barium?
two electrons
The charge on the barium ion is 2+, meaning it has a positive charge of two. The barium ion gets its charge by losing two electrons to become a…
How many electrons are gained or lost in nitrogen?
3 electrons
As the nitrogen element contains 5 valence electrons in the outermost shell, it needs 3 more electrons to complete its octet of 8 electrons. So 3 electrons are gained by nitrogen to form anion with -3 charge. So the resulting anion is N3−. Therefore, nitrogen needs 3 electrons to become an ion.
How many electrons does a group 7A atom need to gain in order to achieve a stable electron configuration?
These anions have -2 charge. Atoms in Group 7A have 7 valence electrons and gain 1 more electron to get octet.
How many electrons does iodine gain to achieve noble gas?
Iodine accepts one electron to achieve noble gas configuration. Strontium loses two electrons to achieve noble gas configuration. Nitrogen accepts three electrons to achieve noble gas configuration. Krypton already has a noble gas configuration. How many electrons does lithium gain or loose to achieve noble gas electron configuration?
How many electrons does nitrogen need to gain to become stable?
From the Periodic Table, you can see that nitrogen has three unpaired electrons in its outer (valence) shell. It needs to gain three more electrons to pair with the three already in the shell in order to reach a stable configuration. Another way to get to the answer is to see that nitrogen has five valence electrons total (paired and unpaired).
How are atoms of noble gas elements stable?
Write the formulas for each ionic compound that can be made by combining each of pair of ions. The atoms of the noble gas elements are stable. Explain. The atoms of the noble gas elements are stable since they have a filled valence electron orbital.
How to write the electron configuration of argon?
Write electron configurations for the following atoms and ions, and comment on the result. All of them have the electron configuration of Argon, a noble gas. Write electron configurations for the following atoms and ions, and comment on the result. D.