Question

Chemists use the periodic table to organize the elements. What are some ways in
which this organization is useful? Select all that apply by writing the letter(s) of
the correct choice(s) in the yellow box.
A. It groups elements that have similar properties.
B. It identifies which elements are most common and which are rare.
C. It allows scientists to predict how a particular element will interact with others,
D. It arranges elements in order of usefulness for human activities.

Answer 1

Answer:

A. It groups elements that have similar properties.

C. It allows scientists to predict how a particular element will interact with others,

Explanation:

The periodic table of elements is a very useful table in chemistry which allows for the grouping of elements based on their atomic number.

Atomic number of elements is the number of protons they contain. The periodic table is based on the periodic law.

On the periodic table, there are trends and patterns from groups to groups and periods to periods.

• It has been shown that elements in the same group have similar chemical properties. This is due to the number of valence electrons they have.
• Also, based on the chemical and physical properties of a group, we can predict if the elements in one group will react with elements in another group