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Chem Exam Ch.4
Final Exam
Question | Answer |
---|---|
an element with 8 elecrons in its highest main energy level is a | noble gas |
the emission of electrons from metals that have absorbed photons is called the | photoelectric effect |
the region outside the nucleus where an electron can most probably be found is the | electron cloud |
how many quantum numbers are deeded to describe the energy state of an electron | 4 |
the wave model of light did not explain | the photoelectric effect |
which group are the noble gases | 18 |
what is the total number fo electrons needed to fill the fist two main energy levels | 10 |
the atomic sublevel with the next highest energy after 4p is | 5s |
becasue excited hydrogen atoms always produce the same line emission spectrum, scientists concluded that hydrogen | released photons of only certain energy |
the number of orbitals for the d sublevel is | 5 |