A&P Test 1, Chapter 2. Galen College of Nursing Exam Questions And Answers Rated A+ New Update Assured Satisfaction

Matter - Answer-Anything that takes up space and has mass elements - Answer-substances that cannot be broken down by ordinary chemical means atoms - Answer-smallest piece of an element; smallest unit of matter major elements of the body - Answer-oxygen, carbon, hydrogen, nitrogen atomic structure - Answer-nucleus, electron shell atomic number - Answer-number of protons mass number - Answer-number of protons and neutrons isotope - Answer-atoms with different numbers of neutrons compound - Answer-two or more different kinds of atoms or elements sharing electrons molecules - Answer-compound containing only one type of atom or element solvent - Answer-water solute - Answer-what is dissolved in water octet rule - Answer-except for the first shell, atoms try to have 8 electrons in their valance shell ionic bond - Answer-involve the transfer of one or more electrons from one atom to another; results in atoms being chargedanions - Answer-gain electrons, makes them negatively charged cations - Answer-lose electrons, makes them positively charged covalent bond - Answer-sharing of electrons nonpolar covalent bond - Answer-equal sharing of electrons polar covalent bond - Answer-unequal sharing of electrons polar covalent bond - Answer-more positive on one end and more negative on the other end hydrogen bonds - Answer-weak electrical attraction between molecules hydrogen bonds - Answer-common in water and dna chemical reactions - Answer-occurs when chemical bonds are formed or broken chemical reactions - Answer-involve reactants and products exergonic reaction - Answer-releases energy