Question

represent nonmetals, and the other colors represent metals or noble gases.
the teacher asked, \which elements on this periodic table could form a covalent compound with each other?\
select three correct answers.
image of a periodic table with labeled elements a, g, c, b, d, e, f

Explanation:

To form a covalent compound, elements should be nonmetals (or a nonmetal and a metalloid, but typically nonmetal - nonmetal bonding is covalent). From the periodic table representation (where nonmetals are in certain color - coded regions, like the blue - gray, light blue, etc. regions here), we analyze each option:

• Option A: Likely a nonmetal (e.g., maybe a group 17 or 16 nonmetal or a noble gas? Wait, no, noble gases don't form compounds easily. Wait, maybe A is a nonmetal. Wait, actually, covalent compounds are formed by nonmetals sharing electrons. So elements that are nonmetals (or metalloids) will form covalent bonds with other nonmetals. Let's assume the color coding: the light blue, gray, etc. are nonmetals. So elements like B, D, E, F, etc. (wait, the original problem's table: let's recall that in periodic table, nonmetals are on the right (except H). So if A is maybe H (a nonmetal), B, D, E, F, etc. Let's think: covalent compounds are formed between nonmetals (including H) or metalloids and nonmetals. So the correct answers would be three nonmetallic elements. Let's assume that B, D, and E (or other combinations) are nonmetals. Wait, the key is that covalent bonding is between nonmetals (since they share electrons, as metals and nonmetals form ionic bonds). So we need three elements that are nonmetals. Let's suppose the correct ones are, for example, B, D, and E (or A, B, D - but need to check the color. Wait, the user's table: the left side (A, G, C) are maybe metals (red, yellow) and the right (B, D, E, F) are nonmetals (blue - gray, light blue, etc.). So nonmetals are on the right. So three nonmetallic elements from the right. So the three correct answers would be, say, B, D, and F (or B, D, E). Wait, the standard way: covalent compounds are formed by nonmetals. So the three correct options are the ones that are nonmetals. Let's assume the correct three are B, D, and E (or other combination, but the key is nonmetal - nonmetal bonding).

Answer:

The three correct answers (assuming the nonmetallic elements are, for example) are:
B. [Element B], D. [Element D], E. [Element E] (or other valid nonmetal combinations based on the periodic table's color - coding for nonmetals).

(Note: Since the exact elements are represented by letters, but the principle is nonmetals forming covalent bonds. The three correct options are the ones that are nonmetals (from the right - hand side of the periodic table - like region in the image), so the three nonmetallic elements among B, D, E, F, etc. )