Chemistry

non-Metallic oxides that dissolve in water forming acidic solutions

The arrangement of elements in descending order according to their chemical activity

Copper & Silver

The ability of the atom to attract electrons to itself

Because the electro negativity difference between their elements is relatively high

Because it has term largest atomic size so it loses its valency electron easily

Because they don't participate in chemical reactions

Because as we go from top to bottom the number of energy levels increases

Because they react with bases and acids giving in the two cases, salt and water.

To become like the configuration of the nearest inert gas

Because as we go from left to right in the same period the attraction force increases

Picometer

Elements that have the properties of both metals and Non-Metals

Elements that's have less than 4 electrons in their outermost energy level

An atom that gained 1 or more electrons during chemical reactions

Elements that have more than 4 electrons in their outermost energy level

It's a covalent compound in which, the electro negativity difference between the elements is relatively high

Atom that lost 1 electron or more during chemical reactions

Zinc & Iron

Calcium & magnesium

Sodium & potassium

Cesium

Because the electro negativity difference between the elements of water is higher than that of ammonia

•Boron

•Germanium (Germany)

•silcon (clothes)

•antimony (antony)

•tellerium (tell)

•arsenic (arsenal)

Fluorine

Basic oxides

Acidic oxides