GRADE 9: MATTER

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Across
  1. 3. It refers to the capacity of atoms to form bonds.
  2. 6. These are structures that result from representations of valence electrons in atoms and electrons with dots
  3. 7. Bonding follows this rule, which states that the atoms of the elements form bonds to have eight outer electrons
  4. 9. positive ion
  5. 11. This can help determine the number of valence electrons of an element.
  6. 12. In the metallic bonding, this is composed of the nucleus and all of the electrons, except those in the valence (outer) shell.
  7. 14. a collection of electrons in a shell that are organized based on the form of the space they fill.
  8. 15. combination of atoms through sharing of electrons
  9. 16. negative ion
Down
  1. 1. combination of atoms through overlap of orbitals
  2. 2. It is the amount of energy required to remove an electron from an atom.
  3. 4. It is the ability of an atom to attract the electrons toward itself in a chemical bond.
  4. 5. These are the electrons in the outermost energy level of an atom
  5. 8. This is the group of elements that has the most stable arrangement of electrons on which they have eight valence electrons, which fill their outer energy level
  6. 10. combination of atoms through transfer of electrons
  7. 13. It is the amount of energy released or absorbed when an electron is added to an atom to form a negative ion.