Skip to main content

← back to the guide

Virginia SOL Chemistry scientific investigation and atomic structure quiz quiz

14questions. Pick an answer and you'll see why right away.

  1. In an experiment testing how surface area affects reaction time, which is the controlled variable?

  2. A set of measurements is close to one another but far from the true value. The measurements are

  3. How many significant figures are in the measurement 0.020800.02080 g?

  4. What is the density of an object with mass 24.024.0 g and volume 3.03.0 mL?

  5. An atom has 19 protons, 20 neutrons and 19 electrons. What is its atomic number?

  6. Which scientist's gold-foil experiment provided evidence for a small, dense, positively charged nucleus?

  7. Two isotopes of carbon must have the same number of

  8. Why is the atomic mass of chlorine on the periodic table about 35.4535.45 rather than a whole number?

  9. How many valence electrons are in an atom of oxygen (1s2 2s2 2p41s^2\,2s^2\,2p^4)?

  10. As you move down Group 1 from lithium to cesium, the atomic radius

  11. Across Period 2 from left to right, the first ionization energy generally

  12. An isotope undergoes alpha decay. The mass number and atomic number of the product change by

  13. A radioactive sample has a half-life of 66 years. What fraction of the original remains after 1818 years?

  14. Which process combines light nuclei into a heavier nucleus and powers the Sun?