Scelta multipla
An atom with 3 protons and 4 neutrons is which isotope?
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4. Atoms and Elements
Isotopes
Scelta multipla
Which element is represented by an atom with 3 protons and 4 neutrons?
A
Lithium
B
Beryllium
C
Boron
D
Helium
Guida verificata passo dopo passo1
Identify the atomic number of the atom, which is equal to the number of protons. In this case, the atom has 3 protons, so its atomic number is 3.
Recall that the atomic number uniquely identifies the element on the periodic table. Each element has a specific number of protons.
Look up the element with atomic number 3 on the periodic table. This element is Lithium.
Understand that the number of neutrons (4 in this case) affects the isotope of the element but does not change the element itself.
Confirm that the element with 3 protons is Lithium, regardless of the number of neutrons.
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