Material World Flashcards
1
Q
What is a periodic table?
A
A visual representation of the elements arranged according to their physical and chemical properties
2
Q
What is an atom?
A
smallest unit of matter. Unique to an element
3
Q
What is a charge?
A
measurable electrical property that can be positive (+) or negative (-)
4
Q
What is the atomic number equivalent to?
A
the number of protons and electron in an element
5
Q
How do you find the number of neutrons in an element?
A
mass # - # of protons + # of neutrons
