Why the size of the anion is always larger to its parent atom?

Explain why The size of the needle of a syringe controls flow rate better than the thumb pressure exerted by a doctor while administering an injection

The unit of length convenient on.the atomic scale js known as an angstrom and is denoted byA: 1overset(0)A = I06(-10) m. The size of a hydrogen atom is about 0.5 A what is the total atomic volume in m^3 of a mole of hydrogen atoms?

An element X with atomic mass 60U has density 6.23gcm^-3 . If the edge length of its cubic unit cell is 400pm, identify the type of cubic unit cell calculate the radius of an atoms of this element.

Why is adsorption always exothermic?

Compare the chemistry of Actinoids with that of the Lanthanoids with special reference to atomic and ionic sizes.

Name the oxometal anions of the first series of the transition metals in which the metal exhibits the oxidation state equal to its group number.

For a particle in one dimensional motion, the instantaneous speed is always equal to the magnitude of instantaneous velocity. Why?

We have carefully distinguished between average speed and magnitude of average velocity. No such distinction is necessary when we consider instantaneous speed and magnitude of velocity The instantaneous speed is always equal to the magnitude of instantaneous velocity. Why?

"In a given series of the transition elements the atomic size increases but this variation in size is very small". Explain.