If an element has 10 protons and 11 neutrons and 10 electrons, which expression correctly identifies ...

Author Question: If an element has 10 protons and 11 neutrons and 10 electrons, which expression correctly identifies ... (Read 14 times)

sc00by25

Hero Member
Posts: 596

on: Jul 29, 2018

If an element has 10 protons and 11 neutrons and 10 electrons, which expression correctly identifies the element?

A) neon-21
B) neon-11
C) neon-31
D) sodium-11
E) sodium-20

Question 2

What does the following element description actually mean?

iron-57

A) iron with a mass number of 57
B) iron with an atomic number of 57
C) iron with 57 protons
D) iron with 57 neutrons
E) 57 iron atoms

macagn

Sr. Member
Posts: 345

Reply #1 on: Jul 29, 2018

Answer to Question 1

Answer: A

Answer to Question 2

Answer: A

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sc00by25

Hero Member
Posts: 596

Reply #2 on: Jul 29, 2018

Thanks

macagn

Sr. Member
Posts: 345

Reply #3 on: Jul 29, 2018

Welcome

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Author Question: If an element has 10 protons and 11 neutrons and 10 electrons, which expression correctly identifies ... (Read 14 times)

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