To which group and periods of the periodic table does an element with atomic number 33 belong?

Question

ScanSolve AI Tutor · Accepted Answer

To determine the group and period of an element with atomic number 33, we need to consider its electron configuration or its position on the periodic table.

Identify the element.
An element with atomic number 33 is Arsenic (As).
Determine the period.
The period number corresponds to the highest principal energy level occupied by electrons.
The electron configuration for an element with atomic number 33 is:
$1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^{10} 4p^3$
The highest principal energy level is 4 (from $4s^2$ and $4p^3$ ). Therefore, the element is in Period 4.
Determine the group.
For main group elements (s and p blocks), the group number (using the A/B notation) is determined by the number of valence electrons.
The valence electrons are those in the outermost shell, which are in the $4s$ and $4p$ orbitals: $4s^2 4p^3$ .
Number of valence electrons = $2 + 3 = 5$ .
Elements with 5 valence electrons belong to Group VA.

Comparing this with the given options:
A) Group IIIB and period 4
B) Group IIIA and period 4
C) Group VA and period 4
D) Group IV and period 4

The correct option is C.

The final answer is $\boxed{\text{C}}$
2 ተጠናቀዋል። ዛሬ 3 ቀርተዋል — ቀጣዩን ላክ።

To which group and periods of the periodic table does an element with atomic number 33 belong?

Answer

Step-by-step solution

Identify the element.

Determine the period.

Determine the group.

Try one yourself

Still stuck on this one?