Two isotopes have the same mass number.
Indicate whether the statement is true or false
[Ques. 2] The atomic number equals the number of protons in a nucleus.
Indicate whether the statement is true or false
[Ques. 3] A hot luminous solid emits a ______________ spectrum, while a hot luminous gas produces a ______ spectrum.
Fill in the blank(s) with correct word
[Ques. 4] An atom is said to have been ________ when it absorbs a photon with sufficient energy to free an electron.
Fill in the blank(s) with correct word
[Ques. 5] In the Bohr model of the atom, a photon may be _________ when an electron jumps from a large, high energy orbit to a smaller, low energy orbit.
Fill in the blank(s) with correct word
[Ques. 6] Four different uses of lasers are __________, __________, __________, and __________,
Fill in the blank(s) with correct word
[Ques. 7] In a laser the emitted light is __________.
Fill in the blank(s) with correct word
[Ques. 8] Two devices that make use of the wavelike nature of electrons are the ______________ and the __________.
Fill in the blank(s) with correct word
[Ques. 9] __________ in an x ray spectrum of an atom occurs because of rapid deceleration of the bombarding electrons.
Fill in the blank(s) with correct word
[Ques. 10] __________ in an x ray spectrum of an atom occur because electrons in the atom make transitions to lower energy levels after being bombarded with high energy electrons.
Fill in the blank(s) with correct word
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