Question

Which sentence about the periodic table of elements is true? *

All elements in period 2 are metals

. All elements in group 18 are metals.

Metals are found on the left side of the periodic table.

D. Metals are found on the right side of the periodic table.

Answer 1

The true statement about the periodic table is that metals are found on the left side of the periodic table, and nonmetals are located on the upper right, with a diagonal band of semimetals separating them.

Step-by-step explanation:

The correct answer to the question "Which sentence about the periodic table of elements is true?" is that metals are found on the left side of the periodic table. This is because the elements can be categorized generally into metals, nonmetals, and semimetals, and it is known that metals occupy the left side of the periodic table. Nonmetals are found primarily on the upper right side, and they are divided from metals by a diagonal band of semimetals. Specifically, Group 1 contains the alkali metals, and Group 2 houses the alkaline earth metals, while Group 17 has the halogens and Group 18 has the noble gases, which are nonmetals.

Answer 2

Answer: metals are found on the left side of the periodic table

Justification:

A. All elements in period 2 are metals: FALSE.

The period 2 include metals and no metals: Li and Be are metals, while B is a metaloid, and C, N, O, and F are non-metals

B. All elements in group 18 are metals: FALSE.

The elements in group 18 are known as noble gases: He, Ne, Ar, Kr, Xe, Rn, and Og (recently named). All of them are non-metals.


C. Metals are found on the left side of the periodic table. TRUE.

With exception of H.

Alkalyne metals are the group 1 (Li, Na, K, Rb, Cs, and Fr).

Alkalyne-earth metals are the group 2: Be, Mg, Ca, Sr, Ba, and Ra.

Those two are the groups most to the left.

The non-metals are all on the right side of the periodic table.

D. Metals are found on the right side of the periodic table. FALSE.

According to the previous information.