atomic mass protons column electrons atomic number neutrons row 11 12 23



A. The _______________ ___________________ of an element includes atomic number plus the number of neutrons.


B. The atomic number represents the number of _____________________ and ___________________ in an element.


C. Elements found in the same_____________________ have similar chemical properties.


D. An element with an atomic number of 11 and an atomic mass of 23 will have __________ neutrons total.




pls help i'll give 20 points