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You can create printable tests and worksheets from these Grade 10 Atomic Structure questions! Select one or more questions using the checkboxes above each question. Then click the add selected questions to a test button before moving to another page.

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If you add an additional neutron to an atom, what do you create?
1. a new element
2. an isotope
3. a reaction
4. an ion
Which statement describes isotopes?
1. Isotopes of the same element have different electron arrangements.
2. Isotopes of the same element have different nuclear charges.
3. Isotopes of the same element have nuclei with masses that are the same.
4. Isotopes of the same element have the same number of protons

This question is a part of a group with common instructions. View group »

In a famous experiment conducted by Ernest Rutherford, positively charged alpha particles were scattered by a thin gold foil. Which of the following is a conclusion that resulted from this experiment?
1. The nucleus is negatively charged.
2. The atom is a dense solid and is indivisible.
3. The mass is conserved when atoms react chemically.
4. The nucleus is very small and the atom is mostly empty space.
X and Y are isotopes of the same element. Which statement is correct?
1. X and Y have atoms with different numbers of electron shells.
2. X and Y have atoms with the same nucleon number.
3. X and Y have atoms with the same number of outer shell electrons
4. X and Y have different chemical properties.

This question is a part of a group with common instructions. View group »

Which of the following atoms has the fewest electrons?
1. ${::}_53^127I$
2. ${::}_52^128Te$
3. ${::}_51^123Sb$
4. ${::}_50^121Sn$
Which is the electron configuration of a neutral atom with a total of six valence electrons?
1. $1s^2 2s^2 2p^2$
2. $1s^2 2s^2 2p^4$
3. $1s^2 2s^2 2p^6$
4. $1s^2 2s^2 2p^6 3s^2 3p^6$
An atom consists of what key, primary components?
1. ions, protons, electrons
2. protons, electrons, molecules
3. protons, electrons, neutrons
4. elements, neutron protons
Which of the following pairs shows isotopes of the same element?
1. $""_6 ^12C and ""_6 ^12C$
2. $""_6 ^14C and ""_7 ^14N$
3. $""_6 ^14C and ""_6 ^12C$
4. $""_6 ^14C and ""_6 ^14C^-4$