Open Question
In which block of the periodic table is uranium (U) found? s block d block p block f block
374
views
2. Atoms & Elements
Periodic Table: Representative Elements & Transition Metals
Struggling with General Chemistry?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
In which block of the periodic table is chromium (Cr) found?
A
s block
B
f block
C
d block
D
p block
Verified step by step guidance1
Recall that the periodic table is divided into blocks based on the electron configuration of the elements, specifically which atomic orbitals are being filled with electrons.
The s block includes groups 1 and 2, where the outermost electrons enter s orbitals.
The p block includes groups 13 to 18, where the outermost electrons enter p orbitals.
The d block consists of transition metals, where the outermost electrons enter d orbitals. These elements are found in groups 3 to 12.
Chromium (Cr) has an electron configuration that ends in 3d electrons, placing it in the d block of the periodic table.
3:30mWatch next
Master Transition Metals and Representative Elements with a bite sized video explanation from Jules
Start learningRelated Videos
Related Practice
Periodic Table: Representative Elements & Transition Metals practice set
Problem sets built by lead tutorsExpert video explanations