States of matter — examples?
Solid, liquid, gas, plasma.
Atomic nucleus — contains?
Protons and neutrons.
States of matter
Solid, liquid, gas, plasma.
Physical properties
Measurable characteristics without changing composition.
Pure substances
Made of only one substance type.
Atomic nucleus
Central, dense, contains protons and neutrons.
Electron cloud
Region where electrons are found.
Protons' charge
+1 charge.
Melting point
Temperature where solid becomes liquid.
Answer 10 questions on Fundamentals of Atomic and Molecular Chemistry.
1. Which statement best describes a pure substance?
2. What happens during a change of state such as melting or boiling?
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