S Structure Of The Atom Flashcards
What is an atom
An atom is the smallest particle of an element that still has the properties of that element
What are the particles found in an atom called (name for all of them)
Subatomic atoms
What are the names of the 3 subatomic atoms and what is their charge
Protons - positive charge
Neutrons - neutral
Electrons - negative
What 2 subatomic particles are found in the nucleus of an atom. And where is the 3rd placed
Protons and neutrons
Electrons are found outside of the nucleus of the atom in a region called the electron cloud
What is the lightest subatomic particle
Electrons
Hwo do atoms move around in an atom
In fixed paths called orbits (these orbits are called shells)
All atoms are positive/neutral/negative
Neutral
The number of protons must be equal to the number of electrons
What is the atomic number
The atomic number of an atom is the number of protons in the nucleus of that atom
What is the mass number
Mass number=number of protons+number of neutrons
What element is the only element that has no neutrons in its nucleus
Hydrogen