The most common charges for elements in their ionic form and polyatomic ions is a range. The charges commonly range from -3 to +3.
Knowing which statement accurately describes the use of port numbers would be easier if the statements are given. Since they are not given it is hard to know the correct answer.
A+ (+2)
-2
Elements listed in the periodic table of elements are neutral; they do not have a charge. When they undergo chemical reactions they may become charged ions. There is no single most common charge for ions, but the most common are -1, -2, -3, +1, +2 and +3.
Iron on the periodic table
Lithium generally has a charge of +1.
litium, and elements in the 2nd period (row) are pretty common
Both Ni and Tc are d-block elements (or transition metal elements)
Phosphorus is number 15 on the Periodic Table of Elements. The most common charge is -3 because it needs three more electrons to fill it's outer shell.
A+ (+2)
-2
1
-2
Elements listed in the periodic table of elements are neutral; they do not have a charge. When they undergo chemical reactions they may become charged ions. There is no single most common charge for ions, but the most common are -1, -2, -3, +1, +2 and +3.
They don't have a negative charge. That is a common misconception.
That it does not gain or loose electrons.
Chlorine is the member of the halogens family; the electrical charge of the chloride ion (Cl-) is -1.
They all lose an electron each and so carry a charge of +1.
NOTHIN !
The periodic table contain all chemical elements, placed in a rational order.