Matter Atoms
Protons
Neutrons
Electrons
Nucleus
Atomic Number
Atomic Mass
- Anything that has mass and takes up space (volume)
- Positively charged particles
Neutral particles; have no electric charge
.
Smallest possible unit into which matter can be divide
while still maintaining its properties
The center of an atom
The number of protons in the nucleus of an atom
: Found Outside the nucleus
Number of protons and Neutrons in the nucleus

Duchenne muscular dystrophy is a serious condition caused by a recessive allele of a gene on the human x chromosome. the patients have muscles that weaken over time because they have absent or decreased dystrophin, a muscle protein. they rarely live past their twenties. how likely is it for a woman to have this condition? a) women can never have this condition.b) one-fourth of the daughters of an affected man would have this condition.c) one-half of the daughters of an affected father and a carrier mother could have this condition.d) only if a woman is xxx could she have this condition.