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BIOS 100 Quiz 2
1. In a chemical reaction, the element 13Al will most preferably:
Answer lose three electrons and become positively charged
- A neutral atom has two, eight, eight electrons in its first, second, and third energy levels.
This information .:
Answer...
- The left to right order of elements in the periodic table is based on their .:
Answer atomic number
- The atomic number of nitrogen is 7. Nitrogen-15 has a greater mass num- ber than
nitrogen-14 because the atomic nucleus of nitrogen-15 contains
.:
Answer 8 neutrons
- A(n) has charge but negligible mass, whereas a(n) has mass but no
charge.:
Answer electron; neutron
6. Carbon-14 has the same .:
Answer number of protons but more neutrons than carbon-12
- Molybdenum has an atomic number of 42. Several common isotopes exist, with mass
numbers from 92-100. Which of the following can be true?:
Answer Molyb- denum atoms can have between 50 and 58 neutrons.
- An ion with six protons, seven neutrons, and a charge of 2+ has an atomic number of .:
- / 1
Answer Six