Atoms Flashcards
Mass is…
The quantity of matter an object has
Matter is…
Anything that takes up space and has mass
Substances that cannot be broken into simplistic types of matter are called..
Elements
What is the smallest part of an element that still retains all the original properties of the element?
Atom
Protons have what charge?
Positive
What is the atomic number of an element?
The number of protons
What charge do neutrons have?
Neutral
What charge do electrons have?
Negative
What two are found in the nucleus?
Protons, neutrons
Where are electrons found?
In various energy levels around the nucleus
An atom is electrically neutral when…
Protons= electrons
A positive or negative charged atom is called…
An ion
The mass number is…
The total number of protons and neutrons found within the nucleus
The atomic mass is the…
Average mass of all known isotopes of an element.
What are isotopes?
Atoms with the same number of protons, but different numbers of neutrons.
