Alejandra analyzed a Periodic Table and discovered that the element, "K," has an atomic number of 19 and an atomic mass of 39.10. What is the specific number of protons, electrons, and neutrons in this atom? What is the name of the element? URGENT PLS

Answer choices:
a. 15 protons, 39 electrons, and 36 neutrons; Krypton
b. 19 protons, 19 electrons, and 20 neutrons; Krypton
c. 15 protons, 39 electrons, and 36 neutrons; Potassium
d. 19 protons, 19 electrons, and 20 neutrons; Potassium

i think   the answer is c hope i'm right

plasma - state of matter made up of electrically charged particles

answer: atomic mass was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version.

explanation:

originally atomic mass was used to arrange elements on the periodic table from left to right in a row. each column then shows similar properties of elements of a group.

in modern periodic table, the atoms are arranged in increasing atomic number. as atomic number represents the number of protons in an atom which is unique for every atom.