general chemistry 2

When elements are arranged in order of increasing atomic number there is a periodic repetition of their ..........properties

• Chemical

• Physical

• Physical and Chemical

There are.....rows(periods)and......column (group,family)

• 18,17

• 17,18

• 7, 18

• 18,7

Group IA is called

• Alkaline metals

• Alkali metals

• Alkaline earth metals

• Halogens

Group 2A is called

• Halogens

• Alkali earth metals

• Alkaline metals

Atomic radius increases when moves...... across a....

• Up to down, column

• Right to lift, period

• Right to left, column

• Up to down, period

Cationic radius is smaller than atomic due to ......in repulsive force and......in attractive force

• Decrease, increase

• Increase, decrease

• Decrease, decrease

• Increase ,Increase

In isoelectronic ions have the same number of......

• Protons

• Electrons

• Neutrons

.....is the minimum energy (kj/mol) required to remove an electron from a gases atom in its ground state

• Z effective

• Ionization energy

• Electron negativity

• Electron affinity

The higher ionization energy the more....is to remove the electrons

• Easier

• Difficult

In ionization energy in periodic trends there are all exist *EXCEPT

• All atoms in the same period have the same energy level

• Same Shielding

• Increasing nuclear charge

• Ionization energy increases from left to right

• Decreasing nuclear charge