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In conclusion, rock drill manufacturers are more than just producers of machinery; they are partners in progress, enabling the extraction of resources, the construction of infrastructure, and the advancement of civilization. Their work is a testament to human ingenuity and our unyielding drive to harness the power of technology to overcome challenges. As we look towards the future, it's exciting to anticipate what new breakthroughs these manufacturers will bring to the world of rock drilling.

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The reactivity of an element is significantly influenced by the number of electrons in its group shell. Elements with a nearly complete group shell tend to be more reactive as they seek to either gain or lose electrons to achieve a stable electronic configuration. This is why metals, which often have one or two electrons in their group shell, readily donate them, while nonmetals, with five or six electrons in their group shell, tend to gain electrons to complete their shell.

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