An atom's electron configuration ends with 3p^4.If another atom has seven more electrons, what would be the continuation of the electron configuration? (5 points) 3p63d3452
3p43d5452
3p6452303
3p4452305

The density of a planet is 0.69 g/cm3 (density of water is 1.0 g/cm3). which of the following planets might this be? a. mercury b. venus c. saturn d. mars

In this synthesis reaction what products will form

Sally is making a model of a magnesium atom with an atomic mass number of 24 for her chemistry class. she has foam balls for the protons, neutrons, and electrons. she has added 6 neutrons to her model so far. how many more neutrons does she need to add to complete her neutral atom of magnesium?