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Grade 10 Periodic Table and Elements
Grade 8 Periodic Table and Elements
Grade 10 Periodic Table and Elements
Caesium, Cs, is an element in Group I of the Periodic Table. When caesium reacts it forms a positive ion, Cs+. How is a caesium ion formed?
  1. A caesium atom gains a proton
  2. A caesium atom gains an electron
  3. A caesium atom loses an electron
  4. A caesium atom shares an electron
Grade 8 Periodic Table and Elements
Grade 10 Periodic Table and Elements
Grade 9 Bonds and Mixing
What happens to the electrons when two atoms form a covalent bond?
  1. The electrons are shared between the two atoms.
  2. One atom gives up an electron that is taken in by the other atom.
  3. Both atoms donate electrons to the nuclei of a third atom.
  4. One of the atoms collects all of the electrons from the other atom to use for itself.
Grade 10 Periodic Table and Elements
Elements show a periodic repetition of their properties when arranged in order of
  1. decreasing atomic radii.
  2. increasing possible charge.
  3. increasing atomic mass.
  4. increasing atomic number.
Grade 9 Periodic Table and Elements
Grade 6 Periodic Table and Elements
Grade 7 Periodic Table and Elements
What is atomic mass?
  1. The shape of an atom
  2. A religious ceremony for atoms
  3. The structure of an atom
  4. The average mass of all isotopes of an element
Grade 8 Periodic Table and Elements
Grade 6 Periodic Table and Elements
Grade 12 Physics
Which of the following factors does NOT influence the reactivity of an element?
  1. Atomic mass
  2. Electron configuration
  3. Electronegativity
  4. Atomic size
College Periodic Table and Elements
What is the atomic number and atomic mass?
  1. number- protons mass- protons+neutrons
  2. number- electrons mass- protons
  3. number- valence electrons mass- neutrons
  4. number- valence electrons mass- protons
  5. number- protons mass- protons+electrons
Grade 8 Periodic Table and Elements
Grade 8 Periodic Table and Elements
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