Examine the following set of ionization energy values for a certain element. How many valence electrons does an atom of the neutral element possess?   Ionization step Ionization energy (kJ/mol) Ei1  1012 Ei2 1903 Ei3 2912 Ei4 4956 Ei5 6273 Ei6 22233 Ei7 25997 Express your answer numerically as an integer.

Strontium has density of 2.64 g/cm3 and crystallizes with the face-centered cubic unit cell. Calculate the radius of a strontium atom. Enter your answer numerically, to three significant figures, and in terms of pm.

What is the oxidation number (oxidation state) for N in N2H4 ? Enter your answer by first entering the sign (+/-) of your oxidation state followed by the integer value for your oxidation state. Do NOT put a space in between the two characters.

What is the maximum number of electrons in an atom that can have the following quantum numbers? n = 4, l = 3 Enter an integer value only (e.g. 0, 1, 2, 3, …)

What is the molecular geometry of CS2?

Ionization involves completely removing an electron from an atom. Light of a particular wavelength can cause ionization to occur if it has the required energy. The energy to ionize a certain element is   [y]   kJ/mol. What wavelength contains enough energy in a single photon to ionize one atom of this element? Enter your answer numerically, in terms of nm and to 0 decimal places.

On an imaginary planet that would be toxic to the inhabitants of earth, an inhabitant of said toxic planet inhales [n] x 1026 chlorine molecules in an average breath of their air.  How many moles of chlorine atoms are inhaled? Enter a number in moles of chlorine atoms to 0 decimal places.

Which medication used to treat osteomyelitis may place a patient at increased risk of tendonitis or tendon rupture?

Which actions will the nurse take to lower the risk for respiratory failure in a patient who has had rib fractures and head injury during a motor vehicle accident? Select all that apply.

The nurse in the emergency department is caring for a patient who has fallen 20 feet from a roof. While performing the primary assessment, what is the most important nursing intervention?