Give reasons:
a. The atomic masses of many elements are in fractions and not whole numbers.
b. Ions are more stable than atoms.
c. Atomic number does not change during a chemical reaction
Answers
Answer:
1. there are total 118 atoms
2. ya it is stable because it is more liberal
Explanation:
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Answer:
But if an element occurs in isotopic forms, then we have to know the percentage of each isotopic form and then calculate the average mass. Therefore, the masses of certain elements are in fractions and not whole numbers.
Atoms with less than eight electrons tend to satisfy the duet rule, having two electrons in their valence shell. By satisfying the duet rule or the octet rule, ions are more stable. ... Both ions form because the ion is more stable than the atom due to the octet rule.
During a chemical reaction, the atomic number remains the same. During a chemical reaction the bonds between the atoms are broken and atoms are rearranged. Hence during Chemical reaction, only the number of Electrons is changed.