General Chemistry
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For the following elements, classify each as either atomic or molecular.
a. Chlorineb. Heliumc. Nitrogend. Potassium
Identify which element does NOT exist as a diatomic gas at normal temperature and pressure.
Complete the sentences below:
Copper, silver, and gold appear in nature in their ________, therefore, is known for thousands of years. However, most compounds are difficult to find in nature due to them _______.
being easily oxidized and thus being covered with colored film
natural state
elemental form
being underground
readily forming compounds
Which of the following element(s) exists as molecules in their standard states?
i. calcium
ii. bromine
iii. xenon
iv. nitrogen
When naming molecular compounds, how many atoms does each of the following prefixes indicate:
hexa-, hepta-, octa-, nona-, deca-?
Visualize elements X and Y as described:
• Element X (atomic element): Atoms represented by triangles.
• Element Y (diatomic molecular element): Atoms represented by squares.
Draw molecular-level views of each of these elements.
Looking at the molecular representations, categorize each of the following as an ionic compound, a molecular compound, an atomic element, or a molecular element.