The answer is B. As the element X is from group two. This means two electrons can be lost. However nitrogen is from group 5 . You need three more electrons to fill the electron shell. Therefore, you need to find the LCM of 2and 3,which is six. 6over 2 is 3 . Which means you need three element X
Answer:
A control variable in scientific experimentation is an experimental element which is constant and unchanged throughout the course of the investigation.
Explanation:
Answer:
A
Explanation:
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Answer:
At 6 minutes, the soil temperature at a 45° angle of insolation is higher than at 0°.
At 15 minutes, the soil temperature at a 90° angle of insolation is higher than at 45°
Explanation: