Multiple Choice
Silicon has an atomic number of 14 and a mass number of 28. How many neutrons does a typical atom of silicon contain?
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2. Atoms & Elements
The Atom
Back2. Atoms & Elements
The Atom
- Multiple ChoiceWhich of the following is considered the smallest part of an element that retains its chemical properties?69views
- Multiple ChoiceApproximately what percentage of the matter in the universe is comprised of atoms?56views
- Multiple ChoiceWhich fundamental force is primarily responsible for holding together the protons and neutrons within an atom's nucleus?79views
- Multiple ChoiceWhich of the following are the smallest chemical units that can combine to form molecules?64views
- Multiple ChoiceIn a silica tetrahedron, the small brown sphere at the center typically represents which type of atom?82views
- Multiple ChoiceNitric acid has the chemical formula HNO3. How many atoms of nitrogen are present in one formula unit of HNO3?119views
- Multiple ChoiceWhich of the following correctly describes a neutral atom of nitrogen with a mass number of 15?77views
- Multiple ChoiceWhich of the following is the smallest unit of an element that retains its chemical properties?60views
- Multiple ChoiceWhich statement best describes the difference between atoms and molecules?66views
- Multiple ChoiceWhat is the basic unit of all matter?291views
- Multiple ChoiceWhich of the following models best illustrates the basic structure of an atom for teaching purposes?63views
- Multiple ChoiceIn which of the following atoms is the 2s orbital closest to the nucleus?91views
- Multiple ChoiceWhich subatomic particles are found in the space surrounding the nucleus of an atom?79views
- Multiple ChoiceWhich of the following atoms has the greatest number of protons?1166views