24/10 n. masa : 24 n. atom : P: e: n:
The Correct Answer and Explanation is:
The image shows an isotope of Magnesium written in standard notation. The symbol is Mg, with atomic number 12 and mass number 24. Using this information, the missing parts can be filled in as follows:
Given:
- Mass number (n. masa) = 24
- Atomic number (n. atom) = 12
To find:
- p (number of protons) = 12
- e (number of electrons) = 12 (since the atom is neutral)
- n (number of neutrons) = Mass number − Atomic number = 24 − 12 = 12
Final Answers:
- n. atom = 12
- e = 12
- n. masa = 24
- p = 12
- n = 12
Explanation:
Magnesium is a chemical element with the symbol Mg and an atomic number of 12. The atomic number represents the number of protons in the nucleus of each atom. In a neutral atom, the number of electrons is equal to the number of protons to balance the positive and negative charges.
The mass number is the total number of protons and neutrons in the nucleus. This value is given as 24. To find the number of neutrons, subtract the atomic number from the mass number. Neutrons have no charge, but they contribute significantly to the mass of an atom.
The proton count determines the identity of the element. Since the proton count is 12, this atom is magnesium. If the atom had more or fewer electrons than protons, it would be an ion. However, since the number of electrons is equal to the number of protons, this is a neutral atom.
Each of these subatomic particles has a specific role. Protons define the element, neutrons provide stability to the nucleus, and electrons determine the atom’s chemical behavior. This isotope of magnesium has an equal number of protons, electrons, and neutrons, making it a stable and naturally occurring form of the element.
