Question 13 of 33 Which element has a smaller atomic radius than strontium (Sr)?
The Periodic Table
O A Francium (F1)
B. Calcium (Ca)
C. Barium (Ba)
D. Rubidium (RD)

Why are the trends and exceptions to the trends in ionization energy observed?

Ahypothrticalax type of ceramic material is known to have a density of 2.10 g/cm3 and a unit cell of cubic symmetry with a cell edge length of 0.57 nm. the atomic weights of the a and x elements are 28.5and 30.0 g/mol, respectively. on the basis of this information, which of the following crystal structures is (are) possible for this material: sodium chloride, cesium chloride, or zinc blende

Electrons are extremely important to what area of technology? a) anti-aging research b) household product development c) electronics d) drug discovery