Question

17. Write any four findings of modern atomic theory.​

Answer 1

Answer:

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Explanation:

All matter is composed of atoms; atoms of the same element are the same, and atoms of different elements are different; atoms combine in whole-number ratios to form compounds. A proton is larger than an electron. The atomic number is the number of protons in a nucleus. Boron has an atomic number of five.

Answer 2

Answer:

All matter is composed of atoms; atoms of the same element are the same, and atoms of different elements are different; atoms combine in whole-number ratios to form compounds. A proton is larger than an electron. The atomic number is the number of protons in a nucleus. Boron has an atomic number of five.