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physical object > natural object > particle > element > column grouped element > group V element

group V element (pnictogen)
subject			fact

group V element	has group 15
	has synonym pnictogen
	is a kind of column grouped element
element	is a part of Universe
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 group V element :

• antimony (10 kinds, 198 facts) (Sb, stibium from latin, ⁴S_3/2 in ground state) - metalloid element with three forms. The metallic form is the more stable and is bright, silvery, hard and brittle
• arsenic (7 kinds, 161 facts) (As, ⁴S_3/2 in ground state) - a metalloid element with two main forms, grey α arsenic and β arsenic
• bismuth (5 facts)
• nitrogen (5 kinds, 134 facts) (N, ⁴S_3/2 in ground state) - colourless, odourless gas (N₂)
• phosphorus (4 kinds, 135 facts) (P, ⁴S_3/2 in ground state) - soft and flammable white solid, the red form is usually non-flammable

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