2. Atoms and the Periodic Table
Lewis Dot Symbols (Simplified)
2. Atoms and the Periodic Table Lewis Dot Symbols (Simplified)
6PRACTICE PROBLEM
Consider the following electron configuration by shell of an unknown element: 2 8 18 18 7.
(i) This element belongs to which group and period in the periodic table?
(ii) Determine whether the element is a metal or a nonmetal.
(iii) Determine the number of protons in an atom of this element.
(iv) Provide the identity of the element.
(v) Draw the electron-dot symbol of this element.
Consider the following electron configuration by shell of an unknown element: 2 8 18 18 7.
(i) This element belongs to which group and period in the periodic table?
(ii) Determine whether the element is a metal or a nonmetal.
(iii) Determine the number of protons in an atom of this element.
(iv) Provide the identity of the element.
(v) Draw the electron-dot symbol of this element.