WebWhen a stable atom gains or loses an electron, it becomes an ion. For example, when chlorine takes an electron from sodium, and sodium gives that electron to chlorine, they become ions and form NaCl. Sodum is a cation (lost an electron and became positive) and chlorine is an anion (gained an electron and becomes negative) in this situation. WebOn the other side of the periodic table elements gain electrons to resemble the next higher noble gas. F gains 1 e - and O gains 2 e - 's, and O gain e - 's to attain the configuration of Ne; thus, the halogens tend to -1 charges and the oxygen family tends to a -2 charge.
4.7: Ions- Losing and Gaining Electrons - Chemistry LibreTexts
WebMar 22, 2024 · Some atoms have nearly eight electrons in their valence shell and can gain additional valence electrons until they have an octet. When these atoms gain electrons, they acquire a negative charge because they now possess more electrons than protons. Negatively charged ions are called anions. WebOct 28, 2008 · Se has 6 valence electrons, but if you add the ion Se2- you're going to be gaining 2 electrons, in which you'll have 8 valence electrons. In A reaction atoms with how … how many hydrogen station eu
How to find the Protons, Neutrons and Electrons for Selenium?
WebThe elements in Group 14, or 4A, only have four valence electrons in their atomic form, requiring that they either gain four additional valence electrons or lose their pre-existing four valence electrons, in order to achieve an octet configuration. WebAug 1, 2024 · 1 Answer tcw1 Aug 1, 2024 Metals lose electrons, nonmetals gain electrons Explanation: In general, metals will lose electrons to become a positive cation and nonmetals will gain electrons to become a negative anion. Hydrogen is an exception, as it will usually lose its electron. Metalloids and some metals can be can lose or gain electrons. WebGive the number of neutrons in each naturally occurring isotope of argon: argon-36, argon-38, argon-40. 22,24,26. Write the symbols for the following isotopes: a)6 protons, 8 … how many hydropower plant in nepal