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What is the mass number of sodium (Na)?

What is the atomic number of an atom with:    35 protons, 35 electrons, 80 neutrons              

Which of the following is the correct way to write the electron configuration of Ne?

List the number of electrons and valence electrons for Ca (calcium). write your answer like this:  2 electrons, 1 valence 

Which of the following is the correct way to write the electron configuration of S?

Number of total electrons in 3d sublevel?

What is the mass number of an atom with:         11 protons, 11 electrons, 12 neutrons              

Which of the following is the correct number of protons, electrons, and neutrons for the following:        88               Sr         38  

List the number of electrons and valence electrons for K (potassium).

Tara has $88,000 of net income for tax purposes after combining the Division B sources. She also has a $9,000 Division C deduction available. A classmate says the $9,000 should be applied as a tax credit after tax rates are applied. Ignoring all other items, what is Tara’s taxable income?