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Why is fluorine smaller than oxygen?

Even though Fluorine comes after Oxygen, it is smaller due to the fact that it has more protons. Therefore, the electrons in Fluorine have a tighter orbit than the electrons in Oxygen. Electrons dictate atomic size.


Why oxygen size is bigger then zn size in Zinc oxide structure?

The larger size of oxygen compared to zinc in zinc oxide is due to the atomic radius difference between the two elements. Oxygen has a larger atomic radius than zinc, resulting in larger O atoms in the zinc oxide structure. Additionally, the bonding arrangement in the crystal structure of zinc oxide may also contribute to the perception of oxygen atoms appearing larger.


Why is oxygen more electronegative than sulfur?

Oxygen is more electronegative than sulfur because it has a greater nuclear charge and a smaller atomic size, leading to a stronger pull on the shared electrons in a covalent bond. Additionally, oxygen has a higher electronegativity value on the periodic table, indicating its greater ability to attract electrons.


What is the atomic number for the oxygen atom?

The mass number is the sum of neutrons and protons in the atomic nucleus and is different for each isotope of any element. For example the isotope oxygen-16 has the mass number 16. The atomic weight of oxygen (not Atomic Mass) is [15,99903; 15,99977] after the IUPAC Tables - 2009. The atomic number of oxygen is 8.


What is the atomic number in O2?

The atomic number of an element refers to the number of protons in its nucleus. For oxygen (O), the atomic number is 8. So in O2 (oxygen molecule), each oxygen atom contributes its atomic number (8) to the total atomic number for the molecule.

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