Question

Define the following:
1. Non-Metals
2. Noble gases
3. Compound
4. Formula​

Answer 1

Answer:

Non-metals are the elements which form negative ions by accepting or gaining electrons. Non-metals usually have 4, 5, 6 or 7 electrons in their outermost shell.

Non-metals are those which lack all the metallic attributes. They are good insulators of heat and electricity. They are mostly gases and sometimes liquid. Some they are even solid at room temperatures like Carbon, sulphur and phosphorus.

Explanation:

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Noble gas, any of the seven chemical elements that make up Group 18 (VIIIa) of the periodic table. The elements are helium (He), neon (Ne), argon.

composed of or resulting from union of separate elements, ingredients, or parts: such as. a : composed of united similar elements especially of a kind usually independent a compound plant ovary. b : having the blade divided to the midrib and forming two or more leaflets on a common axis a compound leaf.

a set form of words for use in a ceremony or ritual. b : a conventionalized statement intended to express some fundamental truth or principle especially as a basis for negotiation or action.

Answer 2

Answer:

Metal -A nonmetal is an element that is generally a poor conductor of heat and electricity.

noble glass -: any of a group of rare gases that include helium, neon, argon, krypton, xenon, and usually radon and that exhibit great stability and extremely low reaction rates.

compound -A substance consisting of atoms or ions of two or more different elements in definite proportions joined by chemical bonds into a molecule.

formula-a group of signs, letters or numbers used in science or mathematics to express a general law or fact

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