With one another to form more complex Lithium (Li), Sodium (Na), Potassium (K), Rubidium (Rb), Cesium (Cs).
and Francium (Fr) are in the same column in the periodic table. Why
are these elements in the same column in the periodic table?
A. They are the same size.
B. They react with each other.
C. They have similar properties.
D. They have the same number of protons.

yes

explanation:

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answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.

the earth would become to overheated and everything alive on it will eventually die from overheating. plants will eventually die as well, water will evaporate, and it will be nothing but a hot planet without anything living on it.

the answers would be

the first one and the second one