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QuestionFind the number of protons, electrons, and neutrons in bromine-80. Protons = 35, Neutrons = 80 - 35 = 45.

Studdy Solution

STEP 1

Assumptions1. The atom is bromine-80. The atomic number of bromine is353. The atomic mass number of bromine-80 is804. The atom is neutral, meaning the number of protons and electrons are equal

STEP 2

The atomic number of an element represents the number of protons in an atom of that element. So, the number of protons in bromine is equal to its atomic number.
Protons=Atomic numberProtons = Atomic\, number

STEP 3

Plug in the atomic number of bromine to find the number of protons.
Protons=35Protons =35

STEP 4

For a neutral atom, the number of protons is equal to the number of electrons. So, the number of electrons in bromine is also35.
Electrons=ProtonsElectrons = Protons

STEP 5

Plug in the number of protons to find the number of electrons.
Electrons=35Electrons =35

STEP 6

The atomic mass number of an atom is the sum of the number of protons and neutrons. So, we can find the number of neutrons by subtracting the number of protons from the atomic mass number.
Neutrons=Atomic mass number−ProtonsNeutrons = Atomic\, mass\, number - Protons

STEP 7

Plug in the atomic mass number of bromine-80 and the number of protons to find the number of neutrons.
Neutrons=80−35Neutrons =80 -35

STEP 8

Calculate the number of neutrons.
Neutrons=80−35=45Neutrons =80 -35 =45So, an atom of bromine-80 contains35 protons,35 electrons, and45 neutrons.

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