Question

interactivity: the quantum mechanical model and atomic orbitals (lms graded)
the quantum mechanical model and atomic orbitals
draw and label the orbitals for a quantum mechanical model of a boron atom. boron has 5 electrons.

Explanation:

Step1: Recall electron - filling rules

Electrons fill orbitals in order of increasing energy (1s < 2s < 2p). The 1s orbital can hold 2 electrons, the 2s orbital can hold 2 electrons, and the 2p orbitals can hold a total of 6 electrons.

Step2: Fill electrons for boron

Boron has 5 electrons. The first 2 electrons go into the 1s orbital, the next 2 go into the 2s orbital, and the last electron goes into one of the 2p orbitals.

Step3: Draw the orbitals

Draw a small sphere to represent the 1s orbital centered at the origin. Draw another slightly larger sphere for the 2s orbital also centered at the origin. For the 2p orbital (since there is one electron in a 2p orbital), draw one of the three dumb - bell shaped orbitals (e.g., the 2p_x orbital along the x - axis). Label the 1s, 2s, and 2p_x orbitals.

Answer:

Draw a small sphere labeled 1s centered at the origin, a larger sphere labeled 2s also centered at the origin, and a dumb - bell shaped orbital along the x - axis labeled 2p_x.