An old copper penny has a mass 3 × 1022 times that of a copper atom. Compare the
ID: 1018599 • Letter: A
Question
An old copper penny has a mass 3 × 1022 times that of a copper atom. Compare the de Broglie wavelength of a penny moving at 0.5 m/s to that of a copper atom moving 104 times as fast. The wavelength for the An old copper penny has a mass 3 × 1022 times that of a copper atom. Compare the de Broglie wavelength of a penny moving at 0.5 m/s to that of a copper atom moving 104 times as fast. The wavelength for the penny is 3 × 1026 times that of the copper atom. copper atom is 3 × 1018 times that of the penny. copper atom is 3 × 1026 times that of the penny. penny is 3 × 1018 times that of the copper atom.
Which of the following two atoms are isotopes?
Which of the following two atoms are isotopes?
126C and 136C
3.
What are the names of the ions Ba2+, Sn2+, and Se2-?
What are the names of the ions Ba2+, Sn2+, and Se2-?
barium(II), tin(II), and selenium(II-)
4.
Most of the alpha particles directed at a thin gold foil in Rutherford's experiment
Most of the alpha particles directed at a thin gold foil in Rutherford's experiment
were absorbed by the foil.
3517Cl and 8035Br 4018Ar and 4020Ca 2412Mg and 126C126C and 136C
3.
What are the names of the ions Ba2+, Sn2+, and Se2-?
What are the names of the ions Ba2+, Sn2+, and Se2-?
barium, tin, and selenium barium, tin(II), and selenide barous, stannous, and selenidebarium(II), tin(II), and selenium(II-)
4.
Most of the alpha particles directed at a thin gold foil in Rutherford's experiment
Most of the alpha particles directed at a thin gold foil in Rutherford's experiment
passed through the foil but were deflected at an angle. passed directly through the foil undeflected. bounced directly back from the foil.were absorbed by the foil.
Explanation / Answer
Q 2)
isotopes : 6C12 and 6C13
explanation : isotopes has same atomic number but different in mass number .
Q3)
answer : barium, tin(II), and selenide
explanation:
cation name end with ium and anion name end with ide
Q4)
answer : passed through the foil but were deflected at an angle.
explanation:
in gold foil experiment some alpha rays are deflected from the center of gold foil . it is due to nucleous
note : Q1 ) is not understand you mixed all data . based on little bit understand the data the answer may be
copper atom is 3 × 1026 times that of the penny