The group one elements have the lowest ionization energies because of their large atomic size which makes the outermost electron only weekly held by the nucleus.
These elements are highly unstable because of for group1- IP is low and for group 7 electron affinity is high
group 1 elements are stored in oil because they are highly reactive elements.
1
Group 1 elements are more reactive than that of group 2 elements.
alkali metals (group 1 elements)
Group 1 elements have very low electronegativies and group 7 elements have very high electronegativities, so that both are reactive with almost every other element, the group 1 elements by donating electrons and the group 7 elements by accepting electrons.
These elements are highly unstable because of for group1- IP is low and for group 7 electron affinity is high
Examples: very reactive metals, react violently with water, solid metals, natural elements (traces of Fr were discoverd in nature), valence +1, important uses in industry, low density etc.
These metals have low density, they are extremely reactive, they are monovalent, the electronegativity is low, they react violent with water etc.Group-1 metals have 1 valence electron. They form mono cations.
group 1 elements are stored in oil because they are highly reactive elements.
The elements in Group 1 have one valence electron in their outermost s orbital.
Elements in group 1 are called Alkali Metals, after that group 2 elements are called Alkali Earth Metals, group 3-12 elements are called Transition Elements.
Examples: react violently with water, low density, low melting point, low ionization energy, monovalent, group 1, etc.
Group IA or group 1 elements are known as alkali metals.
Group 1 elements are the alkali metals, which form ions wih a 1+ charge.
1
Group 1 elements are more reactive than that of group 2 elements.