Atoms, Elements, Molecule, Compounds

Question 1

When writing an element what are the two rules ?

Answer 1

The first letter is always capital then lower case

Question 2

Define element

Answer 2

A substance/es made up of only one type of atom.

Question 3

What is a compound

Answer 3

A compound contains atoms from different elements that are chemically joined together and have a fixed composition.

Question 4

Elements can exist as ?

Answer 4

A single (one atom)
A molecule( a few atoms)
Giant lattice ( million of atoms)
Each time they are all the same and won’t have any chemical variety they are PURE

Question 5

Compounds can exist as ?

Answer 5

A molecule ( a few atom) CO2
A giant lattice ( millions of atoms)
They are different atoms but chemically bonded

Question 6

How do you name a compound (M+nm) ?

Answer 6

Mental and non metal
Metal comes first and ending of the non mental is IDE
Like silver bromide or magnesium sulfide

Question 7

How do you name a compound (M and NM plus Oxygen)

Answer 7

Metal and a non metal+oxygen
Metal will come first the ending of the metal is ate like
Copper sulfate or sodium chlorate

Question 8

Define a mixture

Answer 8

Two or more substances not chemically combined together, easily separated and different substances