Achemist wants to use an element with a large electronegativity for an experiment. based on trends in the periodic table, which of the following groups has the largest electronegativity. alkali metals halogens noble gases alkaline earth metals

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?

Determine the empirical formula for succinic acid that is composed of 40.60% carbon, 5.18% hydrogen, and 54.22% oxygen.

Which of these is an intensive property of a substance