Question

☛❝Important facts about Metals and Non-Metals❞☑️​

Answer 1

• They are also lustrous i.e. shiny, strong, heavy and sonorous.

• Metals have high melting points and boiling points except sodium and potassium.

• At room temperature metals are solid except mercury.

• Generally metals are hard except sodium and potassium.

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Answer 2

Answer:

Important facts about Metals

• The word metal comes from the Greek word 'metallon,' which means quarry or to mine or excavate.

• The most abundant metal in the universe is iron, followed by magnesium.

• The composition of the Earth is not entirely known, but the most abundant metal in the Earth's crust is aluminum. However, the Earth's core likely consists mainly of iron.

• Metals are primarily shiny, hard solids that are good conductors of heat and electricity. There are exceptions. For example, gold is very soft and Meredit is a liquid. However, there are no metals that act as insulators rather than conductors.

• About 75% of the chemical elements are metals. Of the 118 known elements, 91 are metals. Many of the others possess some of the characteristics of metals and are known as semimetals or metalloids.

Important facts about non Metals

• They are either gas (hydrogen, oxygen, nitrogen) or solid (carbon, sulfur) under standard conditions

• They are not good conductors of electricity or heat.

• They are very brittle in their solid form.

• They are not malleable or ductile.

• They generally have lower densities than metals

• They generally have lower melting and boiling points than metals. The one exception to this is carbon.

• They have high ionization energies.