To answer this question, we need to understand the concept of periods in the periodic table. The period number of an element signifies the highest energy level an electron in that element possesses (in its ground state).

Here are the elements with their corresponding atomic numbers and periods:

- Element A: Atomic number 2 (Helium), belongs to period 1.
- Element B: Atomic number 3 (Lithium), belongs to period 2.
- Element C: Atomic number 7 (Nitrogen), belongs to period 2.
- Element D: Atomic number 10 (Neon), belongs to period 2.
- Element E: Atomic number 30 (Zinc), belongs to period 4.

From the above, we can see that elements B, C, and D (Lithium, Nitrogen, and Neon) all belong to the same period (period 2). Therefore, the correct answer is B, C, D.

Question

To answer this question, we need to understand the concept of periods in the periodic table. The period number of an element signifies the highest energy level an electron in that element possesses (in its ground state).

Here are the elements with their corresponding atomic numbers and periods:

- Element A: Atomic number 2 (Helium), belongs to period 1.
- Element B: Atomic number 3 (Lithium), belongs to period 2.
- Element C: Atomic number 7 (Nitrogen), belongs to period 2.
- Element D: Atomic number 10 (Neon), belongs to period 2.
- Element E: Atomic number 30 (Zinc), belongs to period 4.

From the above, we can see that elements B, C, and D (Lithium, Nitrogen, and Neon) all belong to the same period (period 2). Therefore, the correct answer is B, C, D.

Knowee AI · Accepted Answer

To answer this question, we need to understand the concept of periods in the periodic table. The period number of an element signifies the highest energy level an electron in that element possesses (in its ground state).

Here are the elements with their corresponding atomic numbers and periods:

- Element A: Atomic number 2 (Helium), belongs to period 1.
- Element B: Atomic number 3 (Lithium), belongs to period 2.
- Element C: Atomic number 7 (Nitrogen), belongs to period 2.
- Element D: Atomic number 10 (Neon), belongs to period 2.
- Element E: Atomic number 30 (Zinc), belongs to period 4.

From the above, we can see that elements B, C, and D (Lithium, Nitrogen, and Neon) all belong to the same period (period 2). Therefore, the correct answer is B, C, D.

Which of the given elements A, B, C, D and E with atomic number 2,3,7,10 and 30 respectively, belong to the same period?A, B, CB, C, DA, D, EB, D, E

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