An element could be a metal.
metals are elements
Scientifically speaking, there are a couple of fundamental differences between heavy metals and other metals in the table of the elements. Heavier metals tend to have more ions and typically, less toxic elements.
Two elements will form ionic compound if the difference in electronegativity between the two elements is above 1.7 and two elements will form covalent compound if the difference in electronegativity between the two elements is below 1.7 Metals and non-metals will form generally ionic compounds.
metals are simple chemical elements :) NaCl is salt :) NaCl is substance between elements Na and Cl :)
If the electronegativity difference between two elements is less than 1.7, then covalent bond is formed between the two atoms.Also, non metals combine with other non metals to form covalent compounds.
the s-block elements are highly reactive elements, on the other hand, d-block elements are less reactive than the alkai metals and the alkai-earth metals. some are so reactive that they do not easily form compounds.
Inner transiton metals and inner transiton elements... So both a and c
If the difference in electronegativity is from 0.6 to 1.7, the bond will be polar and covalent.
metalloids
Yes, manganese and magnesium are two different elements
metalloids also called semi-metals
An alloy is a mixture of two metals
Because between these two families of chemical elements a big difference of electronegativities exist.