Main group metals tend to lose electrons, forming a cation with the same number of electrons as the nearest noble gas. A main group nonmetal tends to gain electrons, forming an anion with the same number of electrons as the nearest, previous noble gas
The main group elements are groups 1, 2, 13, 14, 15, 16, 17
The charges of ions formed are respectively
+1, e.g. Na+
+2 e.g. Mg2+
+3, e.g. Al3+ (Ga, In, Tl also have +1 ions)
-4 some carbides approximate to ionic, Sn and Pb are metals both form +2 ions
-3, e.g. P3- Bi, (bismuth is a metal and has some +3 ions
-2 e.g. S2- (Polonium is a metal and forms Po2+ ions
-1
Group 1- +1 charge
Group 2- +2 charge
Group 13- +3 charge
Group 14- +4 charge
Group 15- -3charge
Group 16- -2 charge
Group 17- -1 charge
Yes, if you know the chemical properties of the atoms which they were formed these ions.
Rb as an ion
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Main group elements within a column tend to gain or lose the same number of electrons................A+
Main group or Alkali metals
because boron is the first and main element in that group.
In the CAS system the letters A and B were designated to main group elements (A) and transition elements (B).
main group elements
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Groups 1, 2, and 13 - 18 are the main group elements, also called the representative elements.
the noble gases
The main group elements are groups 1, 2, and 13 - 18.
Main group elements within a column tend to gain or lose the same number of electrons................A+
The main group elements have fixed valencies but members of the d block have multiple valencies.
the noble gases
all elements that are not main group elements are metals, and since rhenium is not a main group element, it is a metal. Hope this helped!
Main group elements have elements from groups 1 and 2, except hydrogen and groups 13 to 18. Main group elements are elements in groups who's lightest elements are shown by helium, lithium, boron, beryllium, carbon, nitrogen, oxygen, and fluorine.
Main group or Alkali metals
the representative elements belong to the main group in the periodic table - rosellnica balasoto