According to the periodic table, which two elements have an atomic mass less than twice their atomic number?
Serenity AllenHydrogen and oxygen
According to the periodic table:
- Hydrogen
#2 xx "atomic number" = 2# #"atomic mass" = 1.008# #"amu"# - Oxygen
#2 xx "atomic number" = 16# #"atomic mass" = 15.999# #"amu"#
- Oxygen
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Owen AmbroseHydrogen and Helium are the two elements with an atomic mass less than twice their atomic number.
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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
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