Atom Knoladge Flashcards
Element
Pure substance made up of ONE type of atom
Compound
QIn compounds, the atom of one element is tightly bonded to the atom of another element or elements. Some compounds are made up of molecules instead of atoms e.g = common table salt.
Atom
All matter - everything - is made up of building blocks we call atoms.
The three particals that make up a atom is:
Protons - positive. Neutrons - neutral and electrons - negative
Protons are
Positive
Neautrons are
Neutral
Electrons are
Negative
In nature there are Naturally occurring elements
92
How natural atoms are there
92
How many shells can a middle shell holds
2 shells
The second shell can only hold
8 electrons
Electrons and protons are always
Equil
Protons have
Positive charge
Electrons have
Electric charge
What are the two particals that occurs in the center of an atom
Protons and neutrons