How to find monovalent bond and cation and anion charge in atom
Answers
Answer:
Mono = one / single
Valent = Bonding ability or the number of bonds that could be formed.
CATion = Positive ions formed from the loss of a single electron.
monovalent cation = a positive ionic species with a single charge due to the loss of electrons.
These can be metals (all metals by definition lose electrons) from Group 1 of the Periodic table, so the Alkali metals are the obvious examples.
Others would include metals from the Transition metal series (group 11 in a modern Periodic Table
Cations (positively-charged ions) and anions (negatively-charged ions) are formed when a metal loses electrons, and a nonmetal gains those electrons. The electrostatic attraction between the positives and negatives brings the particles together and creates an ionic compound, such as sodium chloride.
A metal reacts with a nonmetal to form an ionic bond. You can often determine the charge an ion normally has by the element’s position on the periodic table:
The alkali metals (the IA elements) lose a single electron to form a cation with a 1+ charge.
The alkaline earth metals (IIA elements) lose two electrons to form a 2+ cation.
Aluminum, a member of the IIIA family, loses three electrons to form a 3+ cation.
The halogens (VIIA elements) all have seven valence electrons. All the halogens gain a single electron to fill their valence energy level. And all of them form an anion with a single negative charge.
The VIA elements gain two electrons to form anions with a 2- charge.
The VA elements gain three electrons to form anions with a 3- charge.