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26.10.2020 •
Physics
10. Which element has 2 valence electrons in its outermost energy level?
a. Cesium
b. Magnesium
C. Boron
d. Argon
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Ответ:
Ответ:
2:1
Explanation:
It is given that,
The diameter of a white blood cell is 12 micrometers
The diameter of white blood cell according to a model is 24 micrometers.
We need to find the ratio of model size to actual size. It can be done as follows :
Hence, the ratio of model size to actual size is 2:1.