16 multiple choice 1 point what is the atoms chemical symbol (dc)? li sc nb ca ar clear my selection
16 multiple choice 1 point what is the atoms chemical symbol (dc)? li sc nb ca ar clear my selection
Answer
Explanation:
Step1: Recall atomic number concept
The atomic number of an element is equal to the number of protons. Here the number of protons (p^{+}=20).
Step2: Identify element by atomic number
The element with atomic number 20 is calcium, which has the chemical - symbol Ca.
Answer:
Ca