1. Y is the ion of an element, X. Y contains 13
protons, 14 neutrons and 10 electrons.
(a) What is the nucleon number of Y?

Which of the following words describe the reality that the universe looks the same from various perspective

How do limiting factors most affect population size? ostop population growthrestrict population growthincrease population sizeresult in positive impactso

Two liquids are poured into a beaker. after a few seconds, the beaker becomes warm. which of the following best describes this reaction? a. an exothermic reaction b. a decomposition reaction c. an endothermic reaction d. a single-displacement reaction