CH2 - Chemistry of Life Flashcards
Matter is _______
defined as anything that has mass and occupies space.
All matter is composed of _______
92 naturally occurring elements.
A plasma is _______
a gas that has been energized to the point that some of the electrons break free from, but travel with, their nucleus.
A Bose-Einstein condensate is _______
a group of atoms cooled to absolute zero.
Protons have what charge? Where are they found?
positive charge; found in the nucleus
Neutrons have what charge? Where are they found?
no charge; found in the nucleus
Electrons have what charge? Where are they found?
negative charge; found in electron shell
Isotopes are _______
different forms of the same atom that vary only in the number of neutrons they possess.
The K-shell has ________
2.
The L-shell has _______
8.
The M-shell has _______
18.
The N-shell has _______
32.
The octet rule states that _______
with the exception of the innermost shell (which holds 2 electrons) that atoms are more stable energetically when they have eight electrons in their valence shell, the outermost electron shell.
The process of bond formation is called ________
a reaction.
A chemical bond is _______
the force of attraction between atoms to attain stability.
