Electron shells - Study guides, Revision notes & Summaries

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 ...

Bio 100 Exam 1 SBCC Questions and Answers Already Passed **Define Biology.** Biology is the scientific exploration of life. **What are the characteristics of Life?** Life is defined by traits such as (1) complex organization, (2) responsiveness to the environment, (3) reproduction, (4) evolution, (5) growth, (6) internal regulation, (7) homeostasis, and (8) energy processing. **Name the 5 Kingdoms.** The five kingdoms include Monera, Protoctista, Fungi, Plantae, and Animalia. ...

Biology 1001 - Chapter 2 Questions and Answers Already Passed **1. What is the most fundamental unit of organization in matter?** - The atom is the most fundamental unit of organization. **2. Define an atom.** - An atom is the basic unit of matter, retaining the physical and chemical properties of an element. **3. What are the three subatomic particles?** - Neutrons, protons, and electrons. **4. Describe protons.** - Protons are positively charged particles located in t...

What is the correct term used to describe an intravenous injection of a concentrated volume of contrast media? a. bolus b. infusion c. extravasation d. luminal - Answer a. bolus Which of the following methods utilizes a detector that captures x-ray energy and converts it into an electronic signal? a. indirect capture b. CCD c. cassette based radiography d. direct capture - Answer d. direct capture The energy of a characteristic x-ray photon created when an L shell electron fills a K ...

Induction Specific to general Deduction General to specific Archae/Bacteria Prokaryote. One-cell. No nucleus. Eukarya Eukaryotes. Multi-cell. Has a nucleus. Protons Found in nucleus. Positive charged. Nuetrons Found in nucleus. Neutral charge. Electrons Found in outer shells. Negative charge. Atomic Number Number of protons. Never varies.Atomic Mass Number of protons and neutrons in the nucleus. To determine number of nuetrons, subtract Atomic Mass from Atomic Number. Electron Shells Po...

AQA 2023 AS CHEMISTRY 7404/2 Paper 2 Organic and Physical Chemistry questions and answers verified What is the equation linking mass moles and MR? Mass=moles * MR What is the definition of Ar (relative atomic mass)? The average mass of an atom of an element compared to the mass of one twelfth of carbon 12. What does Mr stand for? Relative molecular mass Define relative isotopic mass. The mass of an isotope of an element compared to the mass of one twelfth of the mass of carbon 12 ...

Bio 93 Midterm Review (Test Questions) with Complete Solutions Which of the following properties or processes do we associate with living things? A) evolutionary adaptations B) energy processing C) responding to the environment D) growth and reproduction E) all of the above e The lowest level of biological organization that can perform all the activities required for life is the A) organelle-for example, a chloroplast. B) cell-for example, a skin cell. C) tissue-for example, ne...

Cell Biology 112 Exam 1 PCC 100% Correct Induction Specific to general Deduction General to specific Archae/Bacteria Prokaryote. One-cell. No nucleus. Eukarya Eukaryotes. Multi-cell. Has a nucleus. Protons Found in nucleus. Positive charged. Nuetrons Found in nucleus. Neutral charge. Electrons Found in outer shells. Negative charge. Atomic Number Number of protons. Never varies. Atomic Mass Number of protons and neutrons in the nucleus. To determine number of nue...

Why do only the outer electrons leave their orbit shells? Answer Only outer electrons leave their orbit shells because electrons farthest from the nucleus are more easily freed from their orbits due to a weaker electrostatic force. What is required to have a balanced (or stable) atom? Answer The number of electrons must equal the number of protons in order to have a balanced atom. List the capacity of each of the first four orbital shells of an atom. Answer Shell: #1 = 2 electrons; #2 = 8 ...

Which of the following properties or processes do we associate with living things? A) evolutionary adaptations B) energy processing C) responding to the environment D) growth and reproduction E) all of the above - Answer-e The lowest level of biological organization that can perform all the activities required for life is the A) organelle-for example, a chloroplast. B) cell-for example, a skin cell. C) tissue-for example, nervous tissue. D) organ system-for example, the reproductive s...