movement of the particles _______________________________________ that he shot at the gold foil? But surprisingly a few particles ____________ ___________________________ and some even ________________________________ Due to the results of his Result: Most of the positively charged particles went straight experiment revised the through the gold foil. atomic theory in 1911. Atomic Theory: Most of the matter of the atom is found in a Complete the statements that _________________part of the atom. This is called the describe Rutherford’s revised ___________ of the atom. It is very tiny and extremely atomic theory. __________. Result: Some of the positively charged particles were deflected or even bounced back. Atomic Theory: Like charges repel so the nucleus must have a _____________________. If electrons have a negative charge they could not be in a positively charged nucleus. Electrons must ______________________________________. Result: The diameter of the nucleus is 100,000 times smaller than the diameter of the entire gold atom. Atomic Theory: Atoms are mostly ______________ with a tiny, massive _________________________. Explain why the head of a pin compared to the diameter of a stadium is like an atom?
movement of the particles that he shot at the gold foil? _______________________________________ But surprisingly a few particles ____________ ___________________________ and some even ________________________________ Due to the results of his experiment revised the atomic theory in 1911. Complete the statements that describe Rutherford’s revised atomic theory. Result: Most of the positively charged particles went straight through the gold foil. Atomic Theory: Most of the matter of the atom is found in a _________________part of the atom. This is called the ___________ of the atom. It is very tiny and extremely __________. Result: Some of the positively charged particles were deflected or even bounced back. Atomic Theory: Like charges repel so the nucleus must have a _____________________. If electrons have a negative charge they could not be in a positively charged nucleus. Electrons must ______________________________________. Result: The diameter of the nucleus is 100,000 times smaller than the diameter of the entire gold atom. Atomic Theory: Atoms are mostly ______________ with a tiny, massive _________________________. Explain why the head of a pin compared to the diameter of a stadium is like an atom?
7th_grade_science_semester_exam_study_guide.docx