10 Questions
Which property describes the ability of a substance to undergo a change that transforms it into a different substance?
Chemical property
If an element has 6 protons, 6 neutrons, and 6 electrons, what is the atomic number of this element?
6
What is the name and symbol of the element with atomic number 79?
Gold, Au
When calculating the average atomic weight, which factor is more important to consider for each isotope of an element?
Relative abundance
What does the term 'dimensional analysis setup' refer to in chemistry?
Converting units in mathematical operations
What is the correct way to express the number 0.00345 in scientific notation?
$3.45 \times 10^{-5}$
Which of the following statements best describes a physical property of an element?
The density of the element in solid form at room temperature
If an element has 11 protons, 12 neutrons, and 10 electrons, what is the symbol of this element?
Li
What is the correct number of significant figures in the measurement 400.0 g?
4
Which of the following elements has the highest atomic number?
Cl
Test your knowledge on conversions, significant figures, dimensional analysis, and chemical elements. Be prepared to apply rules for mathematical operations, write answers in scientific notation, and differentiate between physical and chemical properties. Practice counting protons, electrons, and neutrons for neutral and charged atoms.
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