Which of the following is a property of an ionic compound? low boiling point soft malleable high melting point

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?

Draw the lewis structure for the trisulfur s3 molecule. be sure to include all resonance structures that satisfy the octet rule.

What is the morality of 2.50 l of solution that contains 1.85 mol of anhydrous sodium tetraborate?