Answer:
2. Neon
Atomic #: 10
Block: p
Electron Configuration: 2s22p6
3. Sodium
Atomic #: 11
Block: s
Electron Configuration: 3s1
4. Calcium
Atomic #: 20
Electron Configuration: 4s2
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Answer:
2. Neon
Atomic #: 10
Block: p
Electron Configuration: 2s22p6
3. Sodium
Atomic #: 11
Block: s
Electron Configuration: 3s1
4. Calcium
Atomic #: 20
Block: s
Electron Configuration: 4s2