QUESTION IMAGE
Question
a particle that travels around the nucleus of an atom in orbitals is called a(n)
quark.
proton.
neutron.
electron.
Brief Explanations
在原子结构中,电子在原子核外的轨道上绕核运动。夸克是构成质子、中子等的更小粒子;质子和中子位于原子核内。
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D. electron