Science G9 QE

It is the systematic arrangement of the elements in increasing atomic number and shows periodicity in the chemical and physical properties.

• Periodic Table

• Negativity

• Electron Affinity

• Atomic Number

It is the amount of energy released when electrons are added to an atom in a gaseous phase.

It refers to the one-half the distance measurement from the two nuclei of two adjacent atoms.

• Atomic Number

• Atomic Radius

• Atomic Base

• Nitric Acid

It is the energy needed to remove the valence electron of an atom.

• Ionic Nen

• Ionization

• Chemical energy

• Ionization Energy

It is the ability of an atom to attract an electron pair towards itself in a chemical bond.

• Electron Microscope

• Electronnegativity

• Electron Positivity

• Electrons bro

Oxides of metal are mostly ______.

• Acidic

• Basic

_____ Oxides react with both acid and bases.

• Amphoteric

• Neutral

Special bases called _____

are highly soluble in water.

• Precipitate

• Alkali

Acids that are man-made are classified as

_____ acids.

• Artificial

• Mineral

_____ paper turn red in acid.

• Litmus

• pH