Questions and Answers
What information does the document provide about the elements?
Atomic numbers, element symbols, and atomic masses
Which shells are mentioned in the document for electron distribution?
K, L, M, N
What is rounded off to the nearest whole number or half number?
Atomic mass
Which of the following elements is specifically mentioned in the table?
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What is NOT included in the document about the elements?
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Study Notes
Atomic Masses of First 30 Elements
- The document lists the atomic numbers, element symbols, and atomic masses of the first 30 elements.
- The atomic mass of each element is rounded off to the nearest whole number or half number.
- The document includes common elements such as:
- Hydrogen
- Helium
- Carbon
- Oxygen
- Sodium
- Magnesium
- Zinc
- The electronic configuration of the elements is shown, including the distribution of electrons in the:
- K shell
- L shell
- M shell
- N shell
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