Predator 1: wolves
Predator 2: foxes
Prey 1: bison
Prey 2: prairie dogs
Nitrogen is 5 valence electrons
oxygen is 6 valence electrons
fluorine is 7 electrons
Answer:
D. Atoms are like solid balls
Explanation:
John Dalton proposed that all matter is composed of very small things which he called atoms. This was not a completely new concept as the ancient Greeks (notably Democritus) had proposed that all matter is composed of small, indivisible (cannot be divided) objects. When Dalton proposed his model electrons and the nucleus were unknown.