Multiple Choice
Which element has protons in its nucleus?
2
views
4. Atoms and Elements
Subatomic Particles (Simplified)
Struggling with Introduction to Chemistry?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which element has an atomic number of (i.e., contains protons in its nucleus)?
A
Neon (Ne)
B
Magnesium (Mg)
C
Aluminum (Al)
D
Sodium (Na)
Verified step by step guidance1
Understand that the atomic number of an element represents the number of protons in the nucleus of its atoms.
Recall that each element on the periodic table is uniquely identified by its atomic number.
Look up the element with atomic number 11 on the periodic table, which corresponds to the number of protons.
Identify that the element with atomic number 11 is Sodium (Na).
Confirm that Neon (Ne), Magnesium (Mg), and Aluminum (Al) have atomic numbers 10, 12, and 13 respectively, so they do not match the atomic number 11.
1:25mWatch next
Master Subatomic Particles (Simplified) Concept 1 with a bite sized video explanation from Jules
Start learningRelated Videos
Related Practice
Subatomic Particles (Simplified) practice set
Problem sets built by lead tutorsExpert video explanations