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physical object > natural object > particle > element > metallic element

metallic element
subject			fact

metallic element	is a kind of element
element	is a part of Universe
	has synonym atom
particle	obeys uncertainty principle
	has frequency inversely proportional to the wavelength
	has wavelength inversely proportional to its momentum
	has charge
	has mass
physical object	has location or center of gravity
	has angular momentum
	has velocity
	has momentum
	has temperature
	has volume
	has extent
	has material

Kinds of metallic element :

• alkali earth metal (30 kinds, 505 facts) - Element in the second column of the periodic table (from the left)
• alkali metal (21 kinds, 447 facts) (group I element) - Metal in the first column of the periodic table
• aluminium (4 kinds, 127 facts) (Al, ²P_1/2 in ground state) - soft and malleable metal
• bismuth (5 facts)
• gallium (6 facts)
• indium (5 facts)
• lead (6 facts)
• metal (43 kinds, 352 facts) - To an astronomer, a metal is any element heavier than hydrogen and helium; thus, not only are iron and copper metals, but so are elements like oxygen and neon., As used in stellar spectroscopy, any element heavier than helium.
• thallium (6 facts)
• tin (5 facts)
• transition metal (141 kinds, 1658 facts)

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