The atomic number of an element is equal to the number of protons. It the element has a neutral charge then the number of protons equals the number of electrons. The number of neutrons equals the atomic mass minus the atomic number.
ex:
Sodium
Atomic number: 11
Atomic mass: 23
Protons: 11
Electrons: 11
Neutrons: 23 - 11 = 12
Answer:
C
Explanation:
CH₄ is the formula for methane
B is the answer to it!!!!!
The correct answer is hydrogen<span>, and </span>oxygen<span>. </span>
Answer:
The main difference between the two models was about the location of the electron in an atom.
Explanation:
<u>Rutherford described that:</u>
- The electrons were outside of the nucleus.
- They were equal in number to the "positiveness" of the nucleus.
- Also, He randomly placed the negative electrons outside the nucleus.
<u>Bohr improved the Rutherford model:</u>
- Bohr placed the electrons in distinct energy levels.
- Electrons only exist in fixed orbitals (shells) and not anywhere in between.
- Each shell has a fixed energy
- Rutherford explained the nucleus of an atom, while Bohr was more into the electrons and their energy levels.