Elements And Compounds

Question 1

Element

Answer 1

A Substance made of only ONE type of atom

Question 2

Atom

Answer 2

Smallest part of an element

Question 3

Electron

Answer 3

Tiny particle that has a NEGATIVE charge

Question 4

Proton

Answer 4

Tiny particle with a POSITIVE charge

Question 5

Neutron

Answer 5

Tiny particle with a NUTRAL charge

Question 6

Atomic number

Answer 6

The number of protons in an atom

Question 7

Periodic table

Answer 7

Lists all of the elements in the order of their ATOMIC NUMBERS

Question 8

Molecule

Answer 8

Atoms joined together

Question 9

Pure substance

Answer 9

Contains one substance only. This group is made up of ELEMENTS and COMPOUNDS

Question 10

Impure substance

Answer 10

Contains two or more substances and are called MIXTURES

Question 11

Number of elements in the world

Answer 11

around ONE HUNDRED

Question 12

Number of atoms in the world

Answer 12

Around ONE HUNDRED

Question 13

Compound

Answer 13

Elements joined together by a chemical reaction

Question 14

How do you classify a compound

Answer 14

If it’s name ends in IDE,ATE or ANE

Question 15

The substances produced as a result of a chemical reaction

Answer 15

Product

Question 16

Mixture

Answer 16

When two or more substances are put together without a chemical reaction and this process can be un done

Question 17

Solvent - solwent in vater

Answer 17

Liquid substance that dissolves a solute

Question 18

Solute

Answer 18

Solid that is dissolved in a liquid

Question 19

Solution

Answer 19

The result of the solute dissolved in the solvent