Answer:
24
Explanation:
Given parameters:
Atomic number = 24
Mass number = 52
Unknown:
Number of electrons in the uncharged atom of chromium = ?
Solution:
In an uncharged atom of chromium, the number of protons and electrons are the same.
Once we can find the number protons, we can simply equate it to the number of electrons.
- Atomic number is the number of protons in an atom.
- Therefore, since the atomic number is 24, the number of protons likewise is 24;
Number of electrons is 24
Answer:
The greenhouse effect is a natural process that warms the Earth's surface.
Explanation:
When the Sun's energy reaches the Earth's atmosphere, some of it is reflected back to space and the rest is absorbed and re-radiated by greenhouse gases. Greenhouse gases are absorbed energy that warms the atmosphere and the surface of the Earth.
Explanation:
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From 1965 to till the end of the Cold War the US supported Democratic Republic of the Congo ( Zaire ). Mobutu Sese Seko was the military dictator and president of Democratic Republic of the Congo ( which he renamed Zaire in 1971 ). Mobutu was against the USSR foreign policy. His relationship with the US radically changed after the end of the Cold War.
Answer: B. Democratic Republic of the Congo.
