January 2020 Chemistry Regents Questions 1-10

Match it! Select the correct answer from the pull down...Good luck!

Which statement describes a concept included in the wave-mechanical model of the atom?

The element in Group 14, Period 3, of the Periodic Table is classified as a

Which element has chemical properties that are most similar to potassium?

Two atoms that are different isotopes of the same element have

Which element requires the least amount of energy to remove the most loosely held electron from a gaseous atom in the ground state?

Which part of a calcium atom in the ground state is represented by the dots in its Lewis electron-dot diagram?

Which statement describes the energy and bonding changes as two atoms of fluorine become a molecule of fluorine?

As an electron in an atom moves from a higher energy state to a lower energy state, the atom