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AnnZ [28]
3 years ago
8

Elements in group 2 are all called alkaline earth metals. What is most similar about the alkaline earth metals? how many protons

and neutrons they have which chemical properties they have how many total electrons they have which period they are most often found in
Chemistry
2 answers:
Triss [41]3 years ago
7 0

1.       Protons (p) and neutrons(n): Be 4p and 5n, Mg 12p and 12n, Ca 20p and 20n, Sr 38p and 50n, Ba 56p and 81n and Pa 88p and 138n. They react with hydrogen to form metallic hydrides, with oxygen to form oxides and react with halogens to form metallic halides. All elements in Group 2 have two electrons in their valence shells. 

Licemer1 [7]3 years ago
7 0

Answer:

b.which chemical properties they have

Explanation:

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The radiative force that the Earth receives comes from the Sun. When the Sun rays come to the surface, some of them are absorbed and then it is reflected in the space. The greenhouse gases (like CO2) blocks some of these rays, and then the surface stays warm. The excessive amount of these gases makes the surface warmer, which unbalance the climate on Earth.

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2. The temperature change in the Earth's surface caused by the variation of the radiative forcing can be calculated by:

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