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2 cards from this section. Quick, good the night before a test.
What is the atomic number of hydrogen?
It's the first element in the periodic table.
What is the diatomic form of hydrogen called?
It consists of two hydrogen atoms.
What is the atomic mass of hydrogen?
Refer to its position in the periodic table.
True or False: Hydrogen exists freely in Earth's atmosphere.
Think about the properties of gases in the atmosphere.
Given that hydrogen can exist as H₂, describe the implications of this for its reactivity with other elements.
Think about how bonding affects reactivity.
How might the absence of free hydrogen in the atmosphere affect its potential as a fuel source?
Consider the practicality of fuel usage based on elemental availability.
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