Question

question 7 of 10
why do all the elements in group 16 share similar properties?
a. they all have the same number of valence electrons.
b. they all have the same number of protons.
c. they all are in the same period of the periodic table.
d. they all have electrons the same distances from their nuclei

Explanation:

• Option A: Valence electrons determine chemical properties. Elements in the same group (Group 16) have the same number of valence electrons (6 for Group 16), so they share similar chemical properties.
• Option B: The number of protons defines an element. Different elements in Group 16 (e.g., oxygen and sulfur) have different numbers of protons.
• Option C: Elements in the same group are in different periods. For example, oxygen is in period 2 and sulfur is in period 3.
• Option D: As we move down a group, the number of electron shells increases. So, electrons are not at the same distance from the nuclei for different elements in a group.

Answer:

A. They all have the same number of valence electrons.