2. What did Ernest Rutherford\'s gold foil experiment determine? a) Protons are

Question

2. What did Ernest Rutherford's gold foil experiment determine? a) Protons are positively charged and are contained in the atom's nucleus b) Electrons are negatively charged c) Neutrons are neutrally charged. d) Electrons are found in orbits outside the nucleus Which subatomic particles are found within the nucleus? a) Protons and electrons b) Protons only c) Protons and neutrons d) Neutrons and electrons The average atomic mass of aluminum is 26.98 amu. What is true about the mass of 3. 4. aluminum atoms? a) All aluminum atoms weigh exactly 26.98 amu. b) Most atoms of aluminum are 2"AL c) Most atoms of aluminum are 26AL d) Most atoms of aluminum are "AL What is the chemical symbol for gold? a) Au b) Ag c) Go d) Gd The molecular formula of fructose is z0c what is the empirical formula of fructos a) C&H120;% b) CHO c) CH20 d) CaH:02 What are the vertical columns on the periodic table called? a) Periods b) Rows c) Groups d) Networks 5. 6· 7.

Explanation / Answer

2. The answer is A, Protons are positively charged and are contained in the atom nucleus

3. The answer is C, protons, and neutrons

4. The answer is B, Most atoms of aluminum are Al-27

5. The answer is A, Au

6. The answer is C, CH2O

7. The answer is C, groups

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