silikonka.blogg.se - Periodic table with charges of ions

#Periodic table with charges of ions how to#

This means that Fe 2+ is called iron(II) and Fe 3+ is called iron(III). The rest of the metals (all transition metals in the d-block) have to have their charge indicated in the name via a roman numeral suffix in parenthesis. Here are four more to add to the list of "always the same" cations to add: All the group 1 metals make +1 cations and all the group 2 metals make +2 cations. You do NOT try to use a modifier (adjective, prefix, or suffix) to indicate charge. Na + is a sodium ion, Ca 2+ is a calcium ion. All the group 1 and group 2 metals are like this.

Metals that make only ONE type of cation are just named exactly the same as the metal.

ion) and non-metals gain electrons and become anions (negatively charged ions - pronounced AN.

Metals lose electrons and become cations (positively charged ions - pronounced CAT Why is this important? Because metals and non-metals tend to ionize in opposite ways. for us that's boron, silicon, germanium, arsenic, and antimony (the ones you memorize) are metalloids (aka semiconductors). Everything to the left of that line is a metal (except hydrogen, duh). Now notice the dark blue line that starts just under boron (#5) - that is the transition line between the metals and the non-metals. A perfect thing for homemade flash cards.

#Periodic table with charges of ions how to#

The main thing is to know how to match element names to their symbols as in potassium = K. Do not worry about the atomic number - remember, you will have a periodic table for all exams. This is a good useable set of elements to memorize the symbol and name. Nomenclature is the naming of chemical elements and compounds Memorize the ELEMENTS in GREEN