In which group is an element that has an outer-level electron configuration consisting of one electron in the nd orbital and two electrons in the ns orbital?

The mass of a proton is 1.00728 amu andthat of a neutron is 1.00867 amu. What is the binding energy pernucleon (in J) of a Co nucleus? (The mass of a cobalt-60 nucleus is59.9338 amu.) a. 3.039 * 10^-12 b. 2.487 * 10^-12 c. 7.009 * 10^-14 d. 1.

What causes the heat we feel on a hot, sunny day?

Which function allows animals to find mates? movement homeostasis reproduction feeding

The layering of eroded sediments is called: 1. limestone formation 2. mechanical weathering 3. deposition 4. the rock cycle

A student measures the volume of a liquid in a graduated cylinder of 250 mL capacity, and finds the volume of the liquid to be 200 mL. The student transfers the liquid to a graduated cylinder with a capacity of 500 mL.

The complete combustion of gaseous sucrose at a constant pressure absorbs 544 kj of heapt per mole of surcrose. write the balance thermochemical equation for the reaction

Find the acceleration if a car goes from 40 to 50 mph in 5 seconds

What is the percent by mass of nahco3 in a solution containing 10 g of nahco3 dissolved in 400 ml of h2o?

Consider the reaction: 2clf3 (g) + 2nh3 (g) → n2 (g) + 6hf (g) + cl2 (g) when calculating the δh°rxn, why is the δhf° for n2 not important?

12.5 g of copper are reacted with an excess of chlorine gas, and 25.4 g of copper (II) chloride are obtained. Calculate the theoretical yield and the percent yield.