Match items with their appropriate chemical description. -The chemical symbol for sodium 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 sodium is Na. Answer: A The chemical symbol for sulfur is S. Answer: J The chemical formula for phosphate ion is PO43-. Answer: D A proton is a subatomic particle with a positive charge that is found in the nucleus of an atom. Answer: E A neutron is a subatomic particle with no charge that is found in the nucleus of an atom. Answer: F CO₂ is not a valid chemical symbol or formula. Answer: H The nucleus is the central part of an atom that contains protons and neutrons. Answer: I The mass number is the total number of protons and neutrons in an atom. Answer: K Isotopes are atoms of the same element that have different numbers of neutrons in their nucleus.

Match Items with Their Appropriate Chemical Description