3 years ago

Physical and chemical change

2 answers:

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Physical change is a change that occurs without changing the identity of the substance
chemical change is is a change that occurs that causes the identity of a substance to change; something new is formed

luda_lava [24]3 years ago

3 0

<span>A physical change in a substance doesn't change what the substance is. In a chemical change where there is a chemical reaction, a new substance is formed and energy is either given off or absorbed.</span>

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(reply w the answer or get reported) Please answer this

Vesna [10]

Explanation:

The distribution of electrons of an atom or molecule in an atomic orbital is called electronic configuration.

1. The electronic configuration of Fluorine: [He] 2s²2p⁵.

2. The electronic configuration of Neon: [He]2s²2p⁶

3. The electronic configuration of Sulfur: 1s²2s²2p⁶3s²3p⁴

4. The electronic configuration of Calcium:[Ar] 4s²

5. The electronic configuration of Iron: [Ar] 3d⁶4s²

Hence, this is the required solution.

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