Structure of the Atom
Chemistry ⇒ Atomic Structure and the Periodic Table
Structure of the Atom starts at 7 and continues till grade 12.
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See sample questions for grade 7
Describe the location of electrons in an atom.
Describe what happens to the number of electrons when a neutral atom becomes a cation.
If an atom has 11 protons and 12 neutrons, what is its mass number?
If an atom has 17 protons, 18 neutrons, and 17 electrons, what is its mass number?
If an atom has 6 protons, 6 neutrons, and 6 electrons, what is its atomic number?
If an atom has 8 protons, 8 neutrons, and 10 electrons, what is its charge?
Name the scientist who proposed the nuclear model of the atom after the gold foil experiment.
Context: An atom has 20 protons, 20 neutrons, and 18 electrons.
What is the symbol and charge of this ion?
What is the relative mass of a proton? (1) 0 (2) 1 (3) 1/1836 (4) 2
Which of the following best describes an isotope? (1) Atoms with the same number of protons but different numbers of neutrons (2) Atoms with different numbers of protons and electrons (3) Atoms with the same number of neutrons but different numbers of protons (4) Atoms with different numbers of electrons only
Which of the following is correct about isotopes? (1) They have the same number of protons but different numbers of neutrons. (2) They have different numbers of protons and neutrons. (3) They have the same number of neutrons but different numbers of protons. (4) They have different numbers of electrons only.
Which of the following is NOT a part of an atom? (1) Proton (2) Neutron (3) Electron (4) Molecule
Fill in the blank: The ________ is the positively charged particle in the nucleus of an atom.
Fill in the blank: The ________ is the region around the nucleus where electrons are likely to be found.
Fill in the blank: The ________ is the total number of protons and neutrons in an atom.
Fill in the blank: The ________ model describes electrons moving in fixed orbits around the nucleus.
True or False: All atoms of the same element have the same number of protons.
True or False: Electrons are found in the nucleus of an atom.
True or False: The atomic mass of an atom is always a whole number.
True or False: The mass of an electron is much smaller than that of a proton.
