Which two elements have the same number of energy levels with electrons in them?(1 point)

Question

Responses

boron and oxygen
boron and oxygen

krypton and neon
krypton and neon

lithium and francium
lithium and francium

neon and sodium

Answer 1

To determine which two elements have the same number of energy levels with electrons, we need to look at their atomic structures:

1. Boron (B) - Atomic number 5, has 2 energy levels.

2. Oxygen (O) - Atomic number 8, has 2 energy levels.

3. Krypton (Kr) - Atomic number 36, has 4 energy levels.

4. Neon (Ne) - Atomic number 10, has 2 energy levels.

5. Lithium (Li) - Atomic number 3, has 2 energy levels.

6. Francium (Fr) - Atomic number 87, has 7 energy levels.

7. Neon (Ne) - Atomic number 10, has 2 energy levels.

8. Sodium (Na) - Atomic number 11, has 3 energy levels.

Now, comparing the number of energy levels:

• Boron and Oxygen both have 2 energy levels.
• Krypton has 4 energy levels while Neon has 2.
• Lithium has 2 energy levels while Francium has 7.
• Neon has 2 energy levels while Sodium has 3.

The correct response is boron and oxygen, as both have the same number of energy levels with electrons in them.