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WorksheetsAlpha Scattering_Structure of the Atom
Total questions: 9
Worksheet time: 9mins
1. How many protons, neutrons, and electrons does a 3919K atom contain?
A
B
C
D
The diameter of a single sodium atom is calculated to be 3.8 x 10-10 m. How many sodium atoms would fit side by side into 1m?
2.6 x 10-11 Na atoms
2.6 x 10 8 Na atoms
2.6 x 109 Na atoms
2.6 x 1010 Na atoms
A mercury (Hg) atom has 80 protons, 80 electrons, and 120 neutrons. Which of the following is the correct symbol for Hg?
12080Hg
20080Hg
80120Hg
80200Hg
Which conclusion can be drawn from the results of the experiment showing the scattering of α-particles by gold foil?
Electrons orbit the atomic nucleus in well-defined paths.
Nuclei of different isotopes contain different numbers of neutrons.
The atomic nucleus contains protons and neutrons.
The nucleus is very small compared with the size of the atom
Where are electrons, neutrons and protons found in an atom?
A
B
C
D
The table shows the number of protons, neutrons, and electrons in four atoms.
For which atom is the data correct?
A
B
C
D
The diagram represents an atom of an element. Which symbol gives this information?
A beam of particles contains neutrons, n, protons, p , and electrons, e.
The beam is passed between the charged plates.
Which diagram shows how the particles are affected by the plates?
A
B
C
D
Rutherford’s α particle scattering experiment revealed the existence of the atomic nucleus.
Which row in the table shows correctly the charges of α particles and atomic nuclei?
A
B
C
D
