Mention the general trends in group 1 and group 2 with increasing atomic number with respect to atomic size.

Mention the general trends in group 1 and group 2 with increasing atomic number with respect to density.

How do the following properties of group 1 and group 2 elements vary with increase in atomic number? (i) Atomic and ionic radii (ii) Density (iii) Melting and boiling points (iv) Electropositive character Give suitable explanation for the variation in each case.

Na, K, Li (Increasing atomic size)

The softness of group IA metals increase down the group with increasing atomic number.

What is the group of the element having atomic number 34?

Increase in atomic size down the group is due to

The general trend in the properties of elements of carbon family shows that with increase in atomic number

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.

Name of the synthetic radioactive element of group 16 having atomic number 116 is

The +1 oxidation state in group 13 and +2 oxidation state in group 14 becomes more and more stable with increased atomic number. Explain.