Question

article - directions: read and annotate the article following the annotation guide. as you the main or key idea of each paragraph in the space provided. include any relevant vocabul paragraph in the space provided.
naming ionic compounds
ionic compounds are formed when a metal and a nonmetal come together. think it like a team - up where one player (the metal) gives away electrons and becomes positively charged (a cation), and the other player (the nonmetal) takes those electrons and becomes negatively charged (an anion). the opposite charges attract forming a strong bond.
heres how to name them:

1. name the metal first. this is usually the first element in the formula. you just use its regular name. for example, in nacl,

a\ is sodium.

1. name the nonmetal second. for the nonmetal, you take its root name and add the suffix \-ide.\ so, \cl\ (chlorine) becomes chloride.
2. put them together! so, nacl is sodium chloride.

lets try another one: mgs.

• mg is magnesium.
• s (sulfur) becomes sulfide.
• therefore, mgs is magnesium sulfide.

what about metals that can have different charges? these are called transition metals, and they need a little extra help. we use roman numerals in parentheses to show its charge. for example, iron (fe) can be fe2+ or fe3+.

• if you have fecl2, the chlorine ions each have a - 1 charge. since there are two of them, the total negative charge is - 2. to balance this, the iron must have a + 2 charge. so, its iron(ii) chloride.
• if you have fecl3, the total negative charge from three chloride ions is - 3. this means the iron must have a + 3 charge. so, its iron(iii) chloride.

naming covalent compounds
covalent compounds are different from ionic compounds because they are form when two nonmetals share electrons. instead of giving and taking, theyre shar partners. because they share in different ways, we need a system to show how many atoms of each element are in the compound. we use prefixes for this!
here are the common prefixes youll need to know:

• 1: mono-
• 2: di-
• 3: tri-

Explanation:

El problema se centra en la nomenclatura de compuestos iónicos y covalentes, lo que cae dentro de la subdisciplina de Química (dentro de Ciencias Naturales). La explicación se basa en los conceptos de enlace iónico (formación entre metal y no metal, nomenclatura con cationes y aniones) y enlace covalente (formación entre no metales, uso de prefijos para indicar el número de átomos), lo que es típico del estudio de la química, específicamente en la sección de química general o química de compuestos.

Answer:

Natural Science - Chemistry