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8 protons
10 neutrons
Write the following information about the element X
1. Atomic number of X
2. Atomic mass of X.
3. Valency electrons.
4. Valency of X?
10 neutrons
Write the following information about the element X
1. Atomic number of X
2. Atomic mass of X.
3. Valency electrons.
4. Valency of X?
Most Upvoted Answer
8 protons 10 neutrons Write the following information about the elemen...
1. Atomic Number of X
The atomic number is defined as the number of protons in an atom. For element X, which has 8 protons, the atomic number is:
- Atomic Number = 8
This indicates that element X is oxygen (O) on the periodic table.
2. Atomic Mass of X
The atomic mass is the total number of protons and neutrons in an atom. For element X, with 8 protons and 10 neutrons, the atomic mass can be calculated as follows:
- Atomic Mass = Protons + Neutrons = 8 + 10 = 18
Therefore, the atomic mass of element X is approximately 18 atomic mass units (amu).
3. Valency Electrons
Valency electrons are the electrons in the outermost shell of an atom that determine its chemical properties and bonding capabilities. Oxygen has 6 valency electrons in its outermost shell (the second shell).
- Valency Electrons = 6
4. Valency of X
The valency of an element indicates its ability to combine with other elements. Oxygen typically forms bonds by gaining or sharing electrons to achieve a full outer shell, which contains 8 electrons (the octet rule). Since it has 6 valency electrons, it needs 2 more to complete its outer shell.
- Valency = 2
In summary, element X, which is oxygen, has an atomic number of 8, an atomic mass of 18, 6 valency electrons, and a valency of 2.
The atomic number is defined as the number of protons in an atom. For element X, which has 8 protons, the atomic number is:
- Atomic Number = 8
This indicates that element X is oxygen (O) on the periodic table.
2. Atomic Mass of X
The atomic mass is the total number of protons and neutrons in an atom. For element X, with 8 protons and 10 neutrons, the atomic mass can be calculated as follows:
- Atomic Mass = Protons + Neutrons = 8 + 10 = 18
Therefore, the atomic mass of element X is approximately 18 atomic mass units (amu).
3. Valency Electrons
Valency electrons are the electrons in the outermost shell of an atom that determine its chemical properties and bonding capabilities. Oxygen has 6 valency electrons in its outermost shell (the second shell).
- Valency Electrons = 6
4. Valency of X
The valency of an element indicates its ability to combine with other elements. Oxygen typically forms bonds by gaining or sharing electrons to achieve a full outer shell, which contains 8 electrons (the octet rule). Since it has 6 valency electrons, it needs 2 more to complete its outer shell.
- Valency = 2
In summary, element X, which is oxygen, has an atomic number of 8, an atomic mass of 18, 6 valency electrons, and a valency of 2.
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8 protons 10 neutrons Write the following information about the element X 1. Atomic number of X2. Atomic mass of X.3. Valency electrons. 4. Valency of X? for Class 9 2025 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about 8 protons 10 neutrons Write the following information about the element X 1. Atomic number of X2. Atomic mass of X.3. Valency electrons. 4. Valency of X? covers all topics & solutions for Class 9 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for 8 protons 10 neutrons Write the following information about the element X 1. Atomic number of X2. Atomic mass of X.3. Valency electrons. 4. Valency of X?.
8 protons 10 neutrons Write the following information about the element X 1. Atomic number of X2. Atomic mass of X.3. Valency electrons. 4. Valency of X? for Class 9 2025 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about 8 protons 10 neutrons Write the following information about the element X 1. Atomic number of X2. Atomic mass of X.3. Valency electrons. 4. Valency of X? covers all topics & solutions for Class 9 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for 8 protons 10 neutrons Write the following information about the element X 1. Atomic number of X2. Atomic mass of X.3. Valency electrons. 4. Valency of X?.
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