Atoms and Molecules Flashcards
What is an element
The basic building blocks of living and non-living matter
A substance that cannot be broken down into two or simpler substances by chemical processes
What is an atom
The smallest particle of an element
What are molecules
Two or more atoms
What are the three methods used to represent atoms
Ball and stick, Circles, Chemical symbols
What is the nucleus of an atom
The middle of the atoms where neutrons and protons are
What are the characteristics of Neutrons
Relative charge: 0
Relative mass: 1/1840
Location: Inside the nucleus
What are the characteristics of Electrons
Relative charge: -1
Relative mass: 1
Location: Outside the nucleus
What are the characteristics of Protons
Relative charge: 1
Relative mass: 1
Location: Inside the nucleus
What are protons, electrons and neutrons called
Sub-atomic particles
What is the number at the top left corner of every element in the periodic table
The number of protons in the element
What is the number with a decimal in the periodic table of each element
Relative atomic mass of the particle (proton + electron + neutron)
How many electrons are there in an atom
How many ever protons there are in the atom
What are Ions
Atoms that have unequal protons and electrons
What are isotopes
2 or more atoms that have equal numbers of protons and electrons but not neutrons
What is monoatomic and Diatomic
Atom and molecule respectively
