Question

Part 1: Name two elements that have the same properties as calcium (Ca).
Part 2: Determine the number of protons, electrons, and neutrons present in an atom of sodium (Na). Explain how you determined your answer using complete sentences.

Answer 1

Answer:

1 The two elements having same properties as calcium are magnesium and strontium.

2,The atomic number is 11

Step-by-step explanation:

1:-In a periodic table, elements are arranged in 18 vertical columns known as groups and 7 horizontal rows known as periods.

2:-Round the number to 23 and then subtract the amount of protons from 23 and then you have the amount of neutrons.