Multiple Choice
Which of the following is the chemical symbol for the element silver?
30
views
2. Atoms & Elements
Periodic Table: Element Symbols
Struggling with General Chemistry?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which element has 15 protons in its nucleus?
A
Nitrogen (N)
B
Phosphorus (P)
C
Sulfur (S)
D
Chlorine (Cl)
Verified step by step guidance1
Recall that the number of protons in the nucleus of an atom is called the atomic number, which uniquely identifies an element.
Look up the atomic numbers of the given elements: Nitrogen (N), Phosphorus (P), Sulfur (S), and Chlorine (Cl).
Nitrogen has an atomic number of 7, meaning it has 7 protons.
Phosphorus has an atomic number of 15, meaning it has 15 protons.
Since the question asks for the element with 15 protons, identify Phosphorus (P) as the correct element.
4:01mWatch next
Master Periodic Table History with a bite sized video explanation from Jules
Start learningRelated Videos
Related Practice
Periodic Table: Element Symbols practice set
Problem sets built by lead tutorsExpert video explanations