Applying the bohr model to a triply ionized beryllium atom (be3+, z=4), find the ionization energy required to remove the final electron in be3+.

The ___ is the best part of an experiment that is not being tested and it used for comparison

Complete the chart. (Remember to enter a "0" if necessary.) Atomic Number: 3 1s: 2s: 2p: 3s: 3p: 4s: 3d: 4p: 5s:

A brine solution of salt flows at a constant rate of 9 L/min into a large tank that initially held 100 L of brine solution in which was dissolved 0.1 kg of salt.

What stress would shift the equilibrium position of the following system to the left? N2O3 (g) ⇌ NO (g) + NO2 (g); ΔH is negative Decreasing the concentration of N2O3 Heating the system Adding a catalyst Increasing the concentration of NO

Unless told otherwise where should you dispose Solid Waste

The most common element in the atmosphere are

What Is the name of the force that holds together the sub Tomic particles of the nuclear?

Henry Moseley used X-ray experiments to determine the atomic number of elements. How did his discovery contribute to the development of the periodic table? A. It confirmed that elements should be arranged in strict order of increasing atomic mass. B.

Does pollution stay in the city where it originates

Cao (s) + h2o (l) = ca (oh) 2 (s) what mass of slaked lime can be produced from a mixture of 28.4 g of cao and 13.3g of h20