What do they look like? Tree swallows are small birds (about 14 cm long) with long wings and small legs and feet. They are irridescent greenish-blue on their head, shoulders and back, and white their chin, breast and belly. Tree swallows have a short black beak and dark brownish feet.
Ernest Rutherford concluded that an atom contains a very small, dense center, called a nucleus, with a positive charge as a result of his gold foil experiment.
A___is an elementary particle with the charge of 1.6x10-19 C Proton If a negatively charged object is brought near a suspended, positively charged object, the suspended object will be Attracted Is a positively charged object is brought near a suspended, positively charged object, this suspended object will be Repelled If a negatively charged object is brought near a suspended, negatively charged object, the suspended object will be