Multiple Choice
Which of the following is a correct association between the type of matter and its characteristics?
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1. Intro to General Chemistry
Classification of Matter
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Which subatomic particle is responsible for the identity of an element?
A
Proton
B
Photon
C
Neutron
D
Electron
Verified step by step guidance1
Understand that the identity of an element is determined by its atomic number, which is the number of protons in the nucleus of an atom.
Recall that protons are positively charged subatomic particles found in the nucleus of an atom.
Note that each element has a unique number of protons, which distinguishes it from other elements. This is why the number of protons is crucial for identifying the element.
Consider the other subatomic particles: electrons are negatively charged and orbit the nucleus, while neutrons are neutral and also found in the nucleus. Neither of these particles determines the element's identity.
Recognize that photons are not subatomic particles within the atom; they are particles of light and do not contribute to the identity of an element.
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