Answer:
20 electrons
Explanation:
The atomic number equals the amount of protons in an atom's nucleus, but this number is also equal to the amount of electrons. So if the atomic number is 20, that means there are 20 protons and 20 electrons. ( they need to balance out since they have opposite charges)
I hope that helps :)
A) The atomic mass can vary based on the number of neutrons the atoms of the same element have, so the atomic mass may not be in order. Also, the atomic number is unique to each element.
Hope this helped!
Answer:
<h2>Sulfate- SO4^2-</h2><h2>Sulfite- SO3^2-</h2><h2>Permanganate- MnO4</h2><h2>Carbonate- CO3^2</h2>
Explanation:
CARRY ON LEARNING.
Answer:
Isotopes are given by the name of the element and the mass number. ... We are given that boron-10 had five protons in its nucleus, and any element always has the same number of protons in its nucleus (atomic number). So boron-11 has five protons the same as boron-10