0
How many protons neutrons and electrons are in an atom of calcium-42?
Wiki User
∙ 6y ago
Calcium has atomic number 20, which means that all calcium atoms have 20 protons in their atomic nuclei. Neutral calcium atoms also have 20 electrons. Isotopes of calcium vary in the number of neutrons in their atomic nuclei, and are named for their mass number, which is the sum of the protons and neutrons in the nucleus. You can calculate the number of neutrons (N) in an isotope by subtracting the number of protons (atomic number) from the mass number. N = 42 - 20 = 22, therefore, a calcium-42 isotope has 20 protons, 20 electrons, and 22 neutrons.
Wiki User
∙ 6y ago
Add your answer:
Earn +20 pts
Three basic parts of an atom?
An atom contain protons, neutrons and electrons.
What are three types of subatomic particles?
In the atom are: neutrons, protons, electrons.
Is boron protons electrons or neutrons?
Boron is an atom or element, and it contains protons, electrons, and neutrons.
How many protons electrons and neutrons does an atom of potassium have?
19 protons, 19 electrons, and 20 neutrons
Makes up protons neutrons and electrons?
An atom is composed of electrons(-), protons(+), and neutrons( ). The nucleus is composed of neutrons and protons, and the electrons surround it.
Three basic parts of an atom?
An atom contain protons, neutrons and electrons.
How may electrons neutrons protons are foundin the helium atom?
2 protons 2 electrons 2 neutrons 2 protons 2 electrons 2 neutrons don't know
An atom has 11 protons 13 neutrons and 11 electrons What are possible isotopes of this atom?
An atom with 11 protons, 12 neutrons, and 11 electrons. B. An atom with 11 protons, 10 neutrons, and 11 electrons.An atom with 11 protons, 12 neutrons, and 11 electrons.
What three major parts of a atom?
The three constituents that make an atom are protons, neutrons, and electrons.
What are three types of subatomic particles?
In the atom are: neutrons, protons, electrons.
Is boron protons electrons or neutrons?
Boron is an atom or element, and it contains protons, electrons, and neutrons.
Srtucture of an atom?
The structure of an atom, it has electrons, protons and neutrons. The electrons circle around the middle of the atom and the middle of the atom is made up of protons and neutrons.
What is an atom in?
Protons, neutrons, and electrons.
How many protons neutrons and electrons are there in a bromine atom?
The Bromine atom contains: 35 protons, 35 electrons, and 45 neutrons.
What are the three basic building blocks of an atom?
Protons, neutrons and electrons; protons and neutrons are composed from quarks and gluons.
What surrounds the protons and the neutrons in an atom?
The protons and neutrons in an atom are the nucleus of it, so the thing that is surrounding it are the electrons.
How many protons electrons and neutrons are in P?
The phosphorus atom has 15 protons and electrons and 16 neutrons.
