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Which letter represents the protons?. Which letter represents the neutrons?. Which letter represents the electrons?. Which letter represents the nucleus?. What is the name of the element represented by this model?. The identity of an element is determined by what?.
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What is the charge of an electron? • negative
What is the charge of an proton? • positive
What is the charge of an neutron? • Neutral • What does neutral mean?
The number of protons. The identity of an element is determined by what?
Valence electrons are important because they determine… • The state of matter • Chemical properties • Reactivity • Both b and c