The cation (metal) is always named first with its name unchanged. The anion (nonmetal) is written after the cation, modified to end in –ide….Compounds between Metals and Nonmetals (Cation and Anion)
Q. How many protons and electrons does the O2 ion have?
O2- indicates an ion of oxygen having two extra electrons. I.e., since an oxygen atom normally has 8 protons and 8 electrons, this ion has 10 electrons (-10 charge) and 8 protons (+8 charge) giving it a charge of -2 (-10 + 8 = -2)….Table 4.1.
Table of Contents
| orbit (n=) | Maximum # electrons |
|---|---|
| 3 | 18 |
Q. How many protons and electrons are present in O2 quizlet?
O2- indicates an ion of oxygen having two extra electrons. I.e., since an oxygen atom normally has 8 protons and 8 electrons, this ion has 10 electrons (-10 charge) and 8 protons (+8 charge) giving it a charge of -2 (-10 + 8 = -2). You just studied 32 terms!
Q. How many protons does K have?
19
Q. How many protons are in n3?
21 protons
| Transition Metal Ion with Roman Numeral | Latin name |
|---|---|
| Tin (IV): Sn4+ | Stannic |
Q. Which element do we put first in the name?
If the compound is made of a metal element and a nonmetal element, then the metal element is first. If there are two nonmetal elements, then the first name is the element to the left side of the periodic table. Examples: In a compound that contains iron and fluoride, the metal (iron) would go first.
Q. How do you know if its IDE or ate?
-ide is used for non-metal compounds generally. For example, Chlorine forms a chloride ion, so NaCl is Sodium Chloride. -ate is used for the ion that has the largest number of Oxygen atoms. The -ite would be used for the ion with the smaller.
Q. Is CaO ionic?
Calcium oxide is an ionic compound. In Calcium Oxide(CaO) , Calcium loses two electrons forming a cation (Ca+2)and oxygen has six valence electrons and is looking to gain two electrons to complete the octet and making it an anion (O-2).
