Carbon, Silicon (a metalloid), Germanium (a metalloid),
No, helium is not both a metal and a nonmetal. The element helium (He), along with its cousins in Group 18 of the periodic table of the elements, is a monatomic nonmetal.
Carbon is in the same group as lead.
Fluorine is classified as a nonmetal. It is a highly reactive, gaseous element that belongs to the halogen group in the periodic table.
The halogens.
The charge of metal cations can be determined by referring to the group number in the periodic table. Metal cations typically have positive charges equal to the group number. Nonmetal anions usually have negative charges determined by the group number they are in. Transition metal cations have varying charges and their charge must be determined based on the specific compound or ion.
Oxygen's charge is usually -2 when it forms compounds with other elements.
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The ionic charge of a group 1A, 2A, or 3A ion is determined by the number of electrons lost or gained to achieve a full valence shell. Group 1A ions lose 1 electron to attain a +1 charge, group 2A ions lose 2 electrons for a +2 charge, and group 3A ions lose 3 electrons for a +3 charge.
Sulfate is actually a polyatomic ion composed of sulfur and oxygen, and it has a -2 charge. It is not considered a nonmetal because it is not an individual element but rather a group of atoms bonded together.
Sulfur is classified as a nonmetal. It is a nonmetallic element found in group 16 of the periodic table.
No, chlorine is not a main group metal. It is a halogen and is classified as a nonmetal in the periodic table.
Carbon, Silicon (a metalloid), Germanium (a metalloid),
No, helium is not both a metal and a nonmetal. The element helium (He), along with its cousins in Group 18 of the periodic table of the elements, is a monatomic nonmetal.
group 17, halogens
Carbon is in the same group as lead.
Argon is a nonmetal. It is a noble gas that belongs to Group 18 of the periodic table.