Alkali metals group tends to form ions.They give single electron to gain positive charge.For example : Sodium give one electron to become Na+ ion.
Group I to VI
Generally metals tend to form ions.
Elements in Groups 1 and 2, sometimes 3, of the periodic table [elements with 1, 2, and 3 valence electrons, i.e. potassium (K), calcium (Ca), and aluminum (Al), respectively]
When a rock is metallic, it is made of metal. That is, it has a high electrical conductivity and tends to form cations instead of anions. In laymen's terms, it's shiny and is one of several elements that makes up the bulk of the periodic table of elements.
The noble gases, column 18 in a wide form periodic table.
Fluorine is a nonmetal. It is located in group 17 of the periodic table. It tends to obtain an electron to form the fluoride ion.Fluorine is the element with highest electronegativity. So it does not tend to lose electrons. It is in the 17th group of the periodic table.
Electronegativity increases to the right of the table and up the table. So the most electronegative elements are at the top right, the least electronegative are at the bottom left. Fluorine is generally said to be the most electronegative element. This is not strictly true since both Helium and Neon are obviously more electronegative - however it is no good to say so since they are both massively inert. Whereas the electronegativity of Fluorine is important as it helps define its chemistry. Oxygen, nitrogen and chlorine all have high electronegativity but it tends to become a bit of a non-issue beyond that.
You are good at questions dude
Elements in Groups 1 and 2, sometimes 3, of the periodic table [elements with 1, 2, and 3 valence electrons, i.e. potassium (K), calcium (Ca), and aluminum (Al), respectively]
All elements in the 7th family/group (2nd from the right) on the Periodic Table.
The nonmetallic character begin with silicon and increase to right.
ionic
halogens or group 17
As you move across the periodic table from left to right (across a period), the atomic radius of the elements tends to decrease.
Electron affinity is an elements' ability to attract electrons and is variable for each element. Generally the more electronegative atoms are furthest to the right bottom of the periodic table and ascending to the left the elements lose their electron accepting ability.
When a rock is metallic, it is made of metal. That is, it has a high electrical conductivity and tends to form cations instead of anions. In laymen's terms, it's shiny and is one of several elements that makes up the bulk of the periodic table of elements.
The noble gases, column 18 in a wide form periodic table.
Fluorine is a nonmetal. It is located in group 17 of the periodic table. It tends to obtain an electron to form the fluoride ion.Fluorine is the element with highest electronegativity. So it does not tend to lose electrons. It is in the 17th group of the periodic table.
The most recent accurate answer would be Neon. At least that's what my memory ( and my periodic table of the elements) tells me. If I am not correct please let me know!