How many protons are in the nucleus of an atom of bromine?Group of answer choices35457980none of the above.

Chemistry I9) How many valence electrons do atoms of Bromine element have? 3 5 9 7Previous Question Next QuestionDo not use the 'Forward' or 'Back' button on your browser.

The number of protons in each atom of an element is known as:Question 16Select one:a.electron numberb.neutron numberc.mass numberd.atomic number

Which of the following elements has an atomic number of 4? Group of answer choicesHCHeBenone of the above.

How many protons and neutrons are in Cl-37?   Group of answer choices20 protons, 17 neutrons17 protons, 37 neutrons17 protons, 20 neutrons37 protons, 17 neutronsnone of the above

8. The sum of the number of protons and neutrons in an atom is called the _______________.