Match items with their appropriate chemical description. -The chemical symbol for sulfur A)S B)H+ C)Electron D)Proton E)Neutron F)CO₂ G)Na H)nucleus I)mass number J)NO³- K)isotopes

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The chemical symbol for sulfur is S. Answer: I Mass number is the total number of protons and neutrons in an atom. Answer: K Isotopes are atoms of the same element that have a different number of neutrons. Answer: G Na is the chemical symbol for sodium. Answer: J NO³- is a negatively charged ion (anion) of nitrogen oxide. Answer: H The nucleus is the center of an atom which contains protons and neutrons. Answer: B H+ is a positively charged ion (cation) of hydrogen. Answer: E An electron is a negatively charged particle that orbits around the nucleus of an atom. Answer: F CO₂ is not a valid chemical description.

Match Items with Their Appropriate Chemical Description