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How are chemical elements distinguished from each other?
How are chemical elements distinguished from each other?
Chemical elements are distinguished from each other by the number of protons that are in their atoms.
What is an atom?
What is an atom?
An atom is a particle that consists of a nucleus of protons and neutrons surrounded by an electromagnetically-bound cloud of electrons.
Give an example of an atom with 11 protons.
Give an example of an atom with 11 protons.
An atom with 11 protons is sodium.
What determines the isotope of an element?
What determines the isotope of an element?
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Why can't humans see atoms with conventional microscopes?
Why can't humans see atoms with conventional microscopes?
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