Chapter 2 Flashcards
give the characteristics of life
Obtain and use energy
Express and trasmit (reproduce) geneti information
growth and development
maintain order and regulation of their body
respong and evoleve in response to enviromental changes
give the two types of compounds
salts and molecules
define emergent properties
they are seen when you go from elements to compounds. Properties are much different than the og elements.
what are isotopes?
posses the same number of proteons but different number of neutrons
what are ions?
same atomic number but different change in charge (electrons)
what happens when an electron is farther away from nucleus
it has more potential energy
what are valence electrons?
what is valence shell?
electrons in the outermost shell of the atom
the outer most shell
