Question

Using the periodic table and your knowledge of patterns and trends on the table, which of the following elements is the most reactive?
A. Titanium (Ti, #22)
B. Silicon (Si, #14)
C. Oxygen (0, #8)
D. Argon (Ar, #18)

Answer 1

Based on the periodic trends in the periodic table, the most reactive element is oxygen; option C

What are periodic trends in the periodic table?

Periodic trends in the periodic table refers to the periodic variation in the properties of the elements which is observed in the periodic table as one moves across the periodic table from left to right across a period or down a group in the periodic table.

This regular variation is also known as periodicity in the properties of elements.

Some of the periodic trends observed in the periodic table include:

• the reactivity of metals increase down a group and from right to left across a period
• the reactivity of non-metals increase in a group from down to top and from left to right across a period across a period.

Considering the most reactive element based on the periodic trends:

Titanium, Ti is a transition metal whose reactivity is intermediate as it is found in between group 2 and 3 of the periodic table

Silicon is metalloid which is not very reactive

Oxygen, O is a very reactive non-metal found in group 6A

Argon, is a noble gas which is almost inert.

Therefore, the most reactive element is oxygen.

Learn more about periodic trends at: brainly.com/question/28161428

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