0
Because the world is made up like this.
Well, a 18O, as it's name shows, has a releatve mass of 18 units. A proton has got a mass of 1 ,a neutron ahd got a mass of 1, and electron has gor a amss of 1/1840 (we dont calculate with a this small mass). So in a 18 relative mass, neutrons + protons = 18. As oxygen is the 8th in the Periodic Table, it has got 8 atoms. So neutrons + 8 = 18, where neutrons = 10.
What else can I help you with?
How many protons electrons and neutrons are in P?
The phosphorus atom has 15 protons and electrons and 16 neutrons.
How many protons and neutrons doe an atom contain?
Each atom has a unique combination of protons, neutrons, and electrons.
How many protons neutrons and electrons are in an atom of 42 20Ca?
This isotope has 20 protons and and electrons and 22 neutrons.
How many electrons and protons are in a Carbon atom?
6 electrons, protons, and neutrons.
How many electrons neutrons and protons are in an atom of neon?
Protons: 10 Neutrons: 10
How many protons electrons and neutrons does an atom of potassium have?
An atom of potassium has 19 protons, 19 electrons, and typically 20 neutrons.
How many protons electrons and neutrons are in a beryllium atom?
4 protons 4 electrons 5 neutrons
How many protons electrons and neutrons are in P?
The phosphorus atom has 15 protons and electrons and 16 neutrons.
How many neutrons and electrons are there in fluorine?
In a fluorine atom: 9 protons, 10 neutrons, and 9 electrons.
An atom has 15 protons and 18 neutrons How many electrons does it have?
If the atom is neutral, then it will have 15 electrons to balance the 15 protons.
How many electrons are in an atom with 33 protons and 42 neutrons?
That atom is Arsenic. It would have 33 electrons.
How many protons neutrons and electrons are there in a gold atom?
In an atom of gold, there are 79 protons and 79 electrons. The number of neutrons for gold may vary by isotope.
How many protons and neutrons doe an atom contain?
Each atom has a unique combination of protons, neutrons, and electrons.
How many electrons and protons are in a Carbon atom?
6 electrons, protons, and neutrons.
How many protons neutrons and electrons are in an atom of 42 20Ca?
This isotope has 20 protons and and electrons and 22 neutrons.
How many electrons neutrons and protons are in an atom of neon?
Protons: 10 Neutrons: 10
How many electrons protons and neutrons are in As?
Arsenic is a non metal element. There are 33 electrons in a single atom.
