Biology
Grade-7
Easy
Question
Oxygen has large no. of _______________.
- Protons
- Electrons
- Neutrons
- Proteins
Hint:
The part of an atom is found outside the nucleus.
The correct answer is: Electrons
- The atomic mass of oxygen is 16
- Oxygen has 8 as its atomic number
- The oxygen atom has six valence electrons
- The valence electrons are the electrons present in the outermost orbital
- The valence electrons can be shared or lost to other atoms during covalent or ionic bonding, respectively
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