An element has 5 stable isotopes.The mass and percentage of each are:
The element is which of the following?
A) Nb
B) Y
C) Sr
D) Zr
E) Rb
Correct Answer:
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Q22: 31.0 grams of the element phosphorus contain:
A)6.02
Q23: What is the mass in grams of
Q24: Beta particles:
A)have a mass of 4 and
Q25: What is the mass number of the
Q26: Which statement below is true?
A)Metals gain electrons
Q28: Which of the following is a metalloid?
A)mercury
B)selenium
C)bismuth
D)radium
E)calcium
Q29: Which of the following statements is true
Q30: The atomic mass interval for carbon is
Q31: Groups,or families,on the periodic table are:
A)vertical columns
Q32: Choose the information a mass spectrometer is
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