Answer: The bold staircase in the periodic table allows us to classify which elements are metalloids.
Explanation: Additionally, it acts like a "divider" that allows us to properly distinguish the metals from the non-metals in the periodic table.
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this is beta decay as the mass number stays the same but proton number changes, this is specifically beta minus as a neuron changes into a proton
It will melt
This is because the molecules in the metal begin to move faster and faster turning from solid to liquid