Exam #2 Flashcards
What are Atoms?
Basic unit in a chemical element
Protons are what charge? & Located where in an atom?
Positive / In nucleus
N is what charge?
No charge
Why is hydrogen chemically reactive?
It only has 1 electron on its outermost shell, allowing it to be chemically reactive
Describe the Octect Rule
An octect rule is when a atom’s shell requires 8 electrons on the ring to maintain stability.
What is CHON
Carbon, Hydrogen, Nitrogen and Oxygen - Composition Of The Human Body
True or False: Protons and Neutrons are always an equal amount?
True
What is the name of the electrons- on the outermost shell called?
Valence Electrons
What is ionic bonding? & What does it form?
When an atom gain/loses an electron to gain stability - Compounds
What is covalent bonding? & What does it form?
When atoms share electrons to become stable - Molecules
What is the Atomic Number
Number of protons
What is the Mass Number
Number of protons and nuetrons
What is a Non Polar Covalent Bond?
When the atoms share the electron equally
How can you determine the approximate mass of an atom, in atomic mass units?
Add up the number of protons and neutrons.
What is the fundamental difference between covalent and ionic bonding?
In a covalent bond, the partners share a pair of electrons; in an ionic bond, one partner accepts electrons from the other.
