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What are the 3 charges an atom can have? +, -, and neutral. Who was the man who performed the “Gold foil experiment”? a. Dalton b. Rutherford c. Thomson d. Bohr What were the 2 ideas that came out of the Gold foil experiment? 1.)All the positive in an atom is contained in a small densely packed place called the nucleus. 2.) Atoms are mostly empty space. What is the atomic number represent? The number of protons in an element. If you are given an elements mass and atomic number, how would you find the number of neutrons in the element? Subtract the mass from the atomic number. Find the number of protons, neutrons and elections for this element, Cobalt (Co, Mass number 59, Atomic number 27) Protons 27 Neutrons32 Electrons27 Who’s work is it, that leads almost straight to the atom bomb? a. Chadwick/Rutherford b. Thomson c. Bohr What is formed when an atom gains or loses an electron? a. An Ion b. A proton c. A Pony d. A neutron Are atoms of the same element, the same? YES!!!! Are you ready for the FINAL Question?!?!?! If an element has eleven protons, but only five electrons, what type of atom will it be and what is its charge? It would be an ion with a 6+ charge.
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