Determine the number of protons and identify the correct symbol for an atom with 20 neutrons and 20 electrons.
A) 20 protons,
B) 20 protons,
C) 20 protons,
D) 40 protons,
E) 40 protons,

Question

Determine the number of protons and identify the correct symbol for an atom with 20 neutrons and 20 electrons.
A) 20 protons, 
B) 20 protons, 
C) 20 protons, 
D) 40 protons, 
E) 40 protons,

Quizplus · Accepted Answer

The number of protons is equal to the atomic number, which is the same for all atoms of a given element. Since there are 20 electrons, the atom is neutral and has 20 protons. The correct symbol can be determined by finding the element with atomic number 20, which is calcium (Ca). Therefore, the correct symbol is 11eb6c5c_3b12_2cf2_8d9d_f707dd008066_TB8482_11.

Determine the Number of Protons and Identify the Correct Symbol