Chemistry Quiz

An unknown element has 10 protons. Which one of the following statements is true about the element?

The list describes characteristics of four different elements: Element A is a liquid at room temperature. Element B is a solid that does not conduct electricity. Element C is a gas with an effective nuclear charge of +1. Element D is ductile and can be drawn into wires. Based on this list, which elements are metals?

Halogens are known for their high ______ because they readily ______ electrons to achieve a stable configuration.

Arrange the following Group 1 elements in order of increasing atomic size, starting with the smallest:

Which list arranges the elements Na, Li, K, Rb, and Cs in order of decreasing ionization energy (from left (highest) to right (lowest))?

With the exception of He, how many valence electrons do noble gases have?

Beryllium is in Group 2A, Period 2 of the periodic table. Which statement describes the charge of the ion it typically forms?

Consider the elements Rb, Sr, Te, Xe, and In, which are all found in Period 5 of the Periodic Table. Which sequence, from left to right, arranges them by atomic size, from largest to smallest?

Which element has 2 energy levels and is a noble gas?

Which element from the list has the highest electronegativity and the largest atomic radius?