How many core electrons are

Really basic question - what exactly are core electrons? ENC (effective nuclear charge) has a formula:# of protons - # of core
1. 1 answer
2. asked by David
3. 642 views
What is the function of the core of an electromagnet?(1 point)The core is the part that becomes magnetized. The core provides
1. 1 answer
2. 123 views
What is the function of the core of an electromagnet?(1 point)Responses The core is the flow of electrons that charges the
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2. 113 views
Non-Contact Forces Unit Test9 of 149 of 14 Items Question What is the function of the core of an electromagnet?(1 point)
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I don't understand what valence electrons and core electrons are.Ex: Se = 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p4 What makes 4s2 and
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2. asked by Monique
3. 3,136 views
Which of the following best describes an atom?A protons and electrons grouped together in a random pattern B protons and
1. 10 answers
2. asked by wow
3. 2,135 views
Which of the following best describes an atom?A protons and electrons grouped together in a random pattern B protons and
1. 1 answer
2. 145 views
1.Which of the following best describes an atom?A protons and electrons grouped together in a random pattern B protons and
1. 17 answers
2. asked by queen bee
3. 8,789 views
What is the function of the core of an electromagnet?• The core provides the magnet with electric energy. • The core is the
1. 1 answer
2. 86 views
What is the function of the core of an electromagnet?(1 point)Responses The core is the part that becomes magnetized. The core
1. 1 answer
2. asked by Roe
3. 95 views