Elements are represented by a chemical symbol (Letter D)
•with the atomic number and mass number sometimes affixed as indicated below. The mass number is the sum of the numbers of neutrons and protons in the nucleus.
15. Elements can be chemically combined into compounds, therefore, a compound consists of two or more elements combined, in definite proportions, by chemical means.
Answers & Comments
Answer:
Elements are represented by a chemical symbol (Letter D)
•with the atomic number and mass number sometimes affixed as indicated below. The mass number is the sum of the numbers of neutrons and protons in the nucleus.
Answer:
15. B. COMPOUND
16. D. CHEMICAL SYMBOL
Explanation:
15. Elements can be chemically combined into compounds, therefore, a compound consists of two or more elements combined, in definite proportions, by chemical means.
16. Elements are represented by Chemical symbol
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