42 neutrons
Think of it this way:
Arsenic 75. The number of protons and electrons of an element are always the same. Well, we obviously know that there are 33 electrons in arsenic from the Periodic Table, and therefore we have 33 protons. So, to find the number of neutrons is simple. The number of neutrons and protons added together will equal the mass number (75). So it is basic algebra. You want to think logically. Take75 (your mass number) and subtract 33 (the number of protons) and you will get 42.
Hope that helps!
As we should know, atoms are made up of protons, neutrons and electrons. Neutrons and protons are close to 1 amu (Atomic Mass unit)* each. So if arsenic has an atomic number of 33 this means it has 33 protons. Because its mass number is 75, it has 75-33 neutrons=42 *The atomic mass unit is based on carbon-12. Carbon-12 has exactly 12 amu. Scientists then worked out the masses of other particles relative to this. 1 amu is approximately 1.66053886 × 1027 kilograms. That's only 0.000000000000000000000000000166053886 kg.
Arsenic-77 has 33 protons, as do all arsenic atoms. It has 44 neutrons. It is an artificially-produced radioisotope with a half-life of 38.83 hours.
The stable natural isotope of Arsenic is Arsenic-75.
Arsenic is a non metal element. Mass number of it is 75.
Arsenic has 42 neutrons.
75
33 As
there are 16 nuetrons in phosphorus atom
it however has 15 protons , 15 electrons , and 16 nuetrons
it has 35 nuetrons, 30 protons, and 30 electrons with a mass of 65
10 12
Yes, arsenic forms many compounds.
since there are 22 protons there has to be 22 nuetrons since there are 22 protons there has to be 22 nuetrons
im eleven and i know the answer the answer is 18 nuetrons
there are 16 nuetrons in phosphorus atom
there are 12 nuetrons in an atom of magnesium
protons and nuetrons are equal to no. of electrons present in atom
26 nuetrons, 22 electrons, and 22 protons
it however has 15 protons , 15 electrons , and 16 nuetrons
13
69.723
50
50
4