2.1 The Matter Flashcards
What is Matter?
Whatever that:
1) Takes space
2) Has mass
What is Matter made up of?
Atoms
What are atoms made of?
Protons
Electrons
Neutrons
An atom’s nucleus is made of
Protons & Neutrons
What charge do Protons carry?
Protons are positively charged molecules
What charge do Electrons carry?
Electrons are negatively charged molecules
How many Protons and Electrons are in each molecule?
The number of Protons is the same as the number of Electrons.
P = E
Who was the Greek philosopher who discovered the concept of atoms 2,500 years ago?
Democritus
What is the smallest form in which you can break something up?
Atom
(Atomos, Greek, ‘to be unable to cut’)
Which two parts of an atom have the same mass?
Protons & Neutrons
What charge do Neutrons carry?
Neutrons carry no electrical charge
(They’re neutral haha)
