In halogens, with increase of atomic number where habit is found

Following statements regarding the periodic trends of chemical reactivity of the alkali metals and the halogens are given. Which of these statements gives the correct picture: A)In alkali metals the reactivity increases but in the halogens it decreases with increase in atomic number down the group B)The reactivity decreases in the alkali metals but increases in the halogens with increases in atomic number down the group. C)In both the alkali metals and the halogen the chemical reactivity decreases with increases in atomic number down the group D)Chemical reactivity increases with increases in atomic number down the group in both the alkali metals and halogens.

With the increases in atomic number in period

How physical state of halogen changes with increase in atomic number ?

How many of the following properties of halogen Increases with increase In atomic number. (a) Number of valence electron (b) Metallic nature (c) Boiling points (d) Atomic radii (e) Density (f)Inoisation enthalpies (g) Electronegativities (h) Reactivity (i) Oxidising nature. (j) Delta_"eg"H (magnitude wise)

Which of the following properties of halogens increase with increasing atomic number? (I) Ionization energy (II) Ionic radius (III) Bond energy of the X_(2) molecule (IV) Enthalpy of vaporisation

Which of the following properties of halogens increase with increasing atomic number? (I) Ionization energy (II) Ionic radius (III) Bond energy of the X_(2) molecule (IV) Enthalpy of vaporisation

Select the properties which increases regularly with increase in atomic number in atomic number in first group elements of modern periodic table