Question

read each description in the first column of the table below. if any chemical element with atomic number matches the description, check yes and enter the chemical symbol of an element that matches. otherwise, check no in the second column.

description	does any element with z ≤ 92 match the description?	if you checked yes, give the symbol of an element with z ≤ 92 that matches.
a metalloid in group 4a.	yes no
an alkali metal with a higher atomic number than carbon.	yes no
a main - group element in period 5.	yes no

Explanation:

Step1: Identify element in Period 4 and Group 6A

In the periodic - table, the element in Period 4 and Group 6A is selenium (Se).

Step2: Identify metalloid in Group 4A

The metalloid in Group 4A is silicon (Si).

Step3: Identify alkali metal with higher atomic number than carbon

Carbon has atomic number 6. Alkali metals are in Group 1A. Sodium (Na) with atomic number 11 is an alkali metal with a higher atomic number than carbon.

Step4: Identify main - group element in Period 5

There are many main - group elements in Period 5. For example, strontium (Sr) is a main - group element in Period 5.

Answer:

description	Does any element with \(Z\leq92\) match the description?	If you checked yes, give the symbol of an element with \(Z\leq92\) that matches.
A metalloid in Group 4A.	Yes	Si
An alkali metal with a higher atomic number than carbon.	Yes	Na
A main - group element in Period 5.	Yes	Sr