Shells Study guides, Revision notes & Summaries

Phosphorus has an atomic number of 15. This tells us that... - Answer-there must be 15 protons True or False: covalent bonds are stronger than ionic and hydrogen bonds because atoms that are joined with covalent bonds share electrons - Answer-True An e- in a hydrogen atom exists in the first valence shell. The valence e- of Aluminum exist in the 3rd shell. Which valence shell e- have higher potential energy and why? - Answer-the valence e- of aluminum, bc higher e- shells have higher energy...

Chapter 01: Introduction to Dental Materials MULTIPLE CHOICE 1. Until 1970, which of the following groups of dental auxiliaries were allowed to perform intraoral functions in all states? 1. Dental hygienists 2. Registered dental assistants 3. Certified dental assistants 4. On-the-job trained dental assistants a. 1, 2, 3, 4 b. 1, 2, 3 c. 1, 2 d. 1 ANS: D Until 1970, only the dental hygienist was allowed to perform intraoral functions in all states. Although laws vary ...

Biology, 5e (Brooker) Chapter 2 The Chemical Basis of Life I: Atoms, Molecules, and Water 1) The atomic number of an atom is A) the number of protons in the atom. B) the number of neutrons in the atom. C) the number of protons and electrons in the atom. D) the number of protons and neutrons in the atom. E) None of these choices are correct. Answer: A Section: 02.01 Topic: Atoms Bloom's: 1. Remember Accessibility: Keyboard Navigation LO: 02.01.01 Describe the general structure of at...

BDLS Final Exam With complete Answers Latest Graded A+ 2023-2024. Day to day activities - Answer- Greatest good for each individual patient Large scale disasters - Answer- greatest good for greatest number of potential survivors Treat first - Answer- most seriously injured who have reasonable chance of survival Treat last - Answer- least severe illnesses or injuries that are very unlikely to survive Seperate - Answer- Those who require minimal or no treatment to get safety Mass casualty tr...

The most common isotope of hydrogen has one proton, no neutrons, and one electron. An isotope of hydrogen with 1 neutron would have: - Answer- an atomic number of 1 and a mass number of 2 In a covalent bond: - Answer- electrons are shared between atoms so that all atoms have full outer shells A property of a system that is present at one level of organization but absent at the levels below is called: - Answer- an emergent property An ionic bond is - Answer- weaker than a covalent bond ...

EPA 608 Type 3 Questions and Answers Already Passed On low pressure chillers, moisture typically enters the refrigerant system through air leaks from areas with gaskets or fittings The maximum test pressure for leak testing a low pressure centrifugal is: 10 psig Leak test and repair the chiller to reduce refrigerant loss from a pruge unit on CFC-11 chiller ... A hydrostatic tube test kit is used to: determine if a tube leaks Commercial and industrial process refrigeration systems must be rep...

You should keep emergency response record for at least -ANSWER 3 years Who determines if an explosive emergency is a level 1 or level 2? -ANSWER Explosive Ordnance Disposal (EOD) specialist A range has a large bin for storing munition waste. when the bin is full, it is sent to a TSDF for disposal. At what point does the munition waste become WMM? -ANSWER When picked up for disposal What document identifies range boundaries and locations of any munitions that landed off-site? -ANSWER Sit...

Electrostatic Discharge - Answer- What does the acronym ESD stand for? 100mA, 200mA - Answer- Current amounts between __ and __ can be lethal. Shock - Answer- What is the number one concern in regards to electrical safety? Protons, neutrons, electrons - Answer- Bohr's Atomic Model consists of what three components? Shells - Answer- Electrons are arranged in __ around the nucleus. Conductors, semi-conductors, and insulators - Answer- What are three types of materials used in elect...

HED4805 Assignment 1 (COMPLETE ANSWERS) 2024 (149215) - DUE 17 May 2024 ;100% TRUSTED workings, explanations and solutions. Extract from the text: Education through practice Indigenous people of southern Africa developed their own methods of sharing knowledge through teaching practical skills. In most instances teaching was by showing, with demonstrations of different skill sets for the younger generation to observe. In southern Africa the San people, who survived by hunting and food gathering f...

TEST BANK ANATOMY AND PHYSIOLOGY OPENSTAX Table of Contents 1. An Introduction to the Human Body ................................................................................................................. 2 2. The Chemical Level of Organization ................................................................................................................ 7 3. The Cellular Level of Organization ..................................................................................................