Which phrase describes the charge and mass of a neutron?*

What is the number of electrons in a potassium atom?*

The number of valence electrons in each atom of an element affects the element’s*

The nuclides I-131 and I-133 are classified as*

The elements on the Periodic Table are arranged in order of increasing*

Compared to a 1.0-gram sample of chlorine gas at standard pressure, a 1.0-gram sample of solid aluminum at standard pressure has*

Which processes represent one chemical change and one physical change?*

In the ground state, an atom of each of the elements in Group 2 has a different*

Which statement explains why water is classified as a compound?*

Which formula is an empirical formula?*

Which compound contains both ionic and covalent bonds?*

Given the balanced equation representing a reaction:

H₂ → H + H

What occurs during this reaction?*

Parts per million is used to express the*

According to Table F, which ions combine with chloride ions to form an insoluble compound?*

At 1 atm, equal masses of H₂O(s), H₂O(ℓ), and H₂O(g) have*