If an atom has an atomic number of 10, an atomic mass of 20 and a negative charge of -2, how many electrons does it have?

Nitrogen has 7 electrons and can form a maximum of ________ bonds with other elements.

A researcher hypothesizes that crocodile gender is determined by the incubation temperature of the egg. The hypothesis states that an average nest temperature of 32 – 33 °C results in the birth of male crocodiles while cooler and higher incubation temperatures result in female crocodiles.   What is a valid, testable prediction based on this hypothesis?

You have been asked to synthesize a new isotope for cadmium. Which part of the original atom would you need to manipulate in order to create an isotope?

The smallest functional unit of matter is

Five unknown compounds are added to water. Four of the compounds go into solution while one does not. What property does water possess that allows these four compounds to dissolve? Why might the fifth compound not dissolve?

The portion of an amino acid that makes the amino acid unique among the 20 different amino acids is

Our species is called Homo sapiens. The first word refers to which taxonomical grouping?

Postoperative Day 1• The patient’s lung function continues to worsen ventilator settings include 100% FIO2 and high levels of PEEP.• The patient has developed acute renal failure• There is an advance directive in the patient’s record indicating that this patient does not want to be kept alive by artificial means.Subjective Data• Patient is unable to communicate.• Family is at the bedside and voicing concerns and questions regarding the patient’s progress.Objective DataPhysical Examination• General: Head of bed elevated 45 degrees; skin cool with moderate diaphoresis• Respiratory: Endotracheal tube in place with mechanical ventilation. No accessory muscle use, retractions, or paradoxic breathing; respiratory rate 28 breaths/min; SpO2 92%, bilateral crackles at lung bases. Ventilator settings: A/C – Tidal Volume 450/mL, FIO2 100%, Respiratory Rate 10/minute, PEEP 10/cm H2O, pressure limit 35cm H2O.• Cardiovascular: Apical-radial pulse equal, BP 100/60mmHg• Weak peripheral pulses; temperature 101° F (38.3° C) rectally• Gastrointestinal: Surgical dressing dry and intact; colostomy draining serosanguineous drainage• Urologic: Indwelling bladder catheter draining concentrated urine less than 30mL/hrDiagnostic Findings• ABGs obtained 4 hours following intubation: pH 7.15, PaO2 59mmHg, PaCO2 57mmHg, HCO3 16mEq/L, O2 saturation 86%.• Chest x-ray: new bilateral, scattered interstitial infiltrates compatible with an ARDS pattern as interpreted by the radiologistWhich assessment finding obtained by the nurse indicates the need for suctioning?

To verify the correct placement of an oral endotracheal tube after insertion, which actions by the nurse are appropriate? (Select all that apply)