Multiple Choice
In the simplified atomic model, what do all atoms of the same element have in common?
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4. Atoms and Elements
The Atom (Simplified)
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Which statement best describes an atom?
A
A mixture of two or more substances that can be separated by physical means
B
The smallest unit of an element that retains the chemical identity of that element, consisting of a nucleus (protons and neutrons) with electrons surrounding it
C
A positively charged particle found in the nucleus of an element
D
A substance made of two or more different elements chemically bonded in fixed ratios
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