Answer:
1.) density can be defined as the mass of the substance in unit volume
density=mass/volume
2.)2.70g/mL
mass of the block =146
length× width×height=54cm=54mL
density=mass/volume =146 g/54 mL =2.70 g/mL
3.) 3.39 g/mL
4.)Accepted value is the value that scientists and community accept as true. This is a theoretical value.
5.)Percent error is 9.11 % The element which has 7.13 g/cm³ as density is Zinc (Zn).
Explanation:
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<u>Answer: </u>The correct answer is Option D.
<u>Explanation:</u>
Unstable isotopes are defined as the isotopes which have excess of neutrons as compared to the stable form of the nucleus of an atom.
These isotopes attain stability by undergoing a spontaneous nuclear decay. The isotopes which are unstable have another name and are known as radioactive isotopes or radioisotopes.
These isotopes undergoes decay by 4 processes: Alpha decay, beta decay, gamma emission and positron decay.
Hence, the correct answer is option D.
Answer: Chemical X H3 and f1
Explanation:
Odd, unusual, or unexpected.
