Science: Chapter 2: Elements, atoms, and compounds

Question 1

What are atoms

Answer 1

Atoms are incredibly tiny particles that make up all substances

Question 2

What are all the elements grouped in?

Answer 2

The periodic table of elements

Question 3

What is an example of a chemical symbol

Answer 3

H, (hydrogen), C, (carbon) or O (oxygen and many others

Question 4

What is a molecule made of?

Answer 4

A molecule is made up of atoms all chemically bonded to each other

Question 5

What is Chemical Formulae?

Answer 5

A formulae that tells you how many of each atoms there are in a molecule relative to eachother

Question 6

What is an example of a chemical formulae

Answer 6

H2O, MgCl
2
NaOH

Question 7

What are compounds?

Answer 7

Compounds are two or more different atoms strongly joined together

Question 8

In a compound made of a metal and a non metal, what substance would come first?

Answer 8

The metal. E.g, iron bromide

Question 9

If there was one oxygen atom what would it be named when naming compounds?

Answer 9

Monoxide, for one and dioxide for 2