Valence electrons Study guides, Study notes & Summaries

describe the basic functions all life forms must accomplish -response to environmental stimuli & maintain homeostasis -uptake and processing of nutrients/energy -regulation -growth and reproduction compare and contrast eukaryotic and prokaryotic cell types Prokaryotes: -circular chromosomes, no nucleus, no organelles, 3.5 bya -DNA concentrated in nucleoid Eukaryotes: -linear chromosomes, nucleus, organelles, 1.5 bya -DNA concentrated in nucleus Both: -cellular function takes p...

The outermost electrons - Answer-valence electrons the shell the outermost electrons occupy - Answer-Valence shell Electron pairs in an electron dot structure that are not participating in a chemical bond - Answernon-bonding pair the electric force of attraction between two oppositely charged ions - Answer-ionic bond The fluid hold of electrons which holds the positively charged metal ions together - Answer-metallic bond An electrical attraction in which atoms are held together by their mu...

20 milliamperes is the same as ________. (Remember, 1 milliampere = 0.001 ampere.) - Answer 0.02 amperes The orbital shell that has a maximum electron capacity of 18 electrons is the ___________ shell. - Answer Third A semiconductor material - Answer Has four valence electrons. The major factor for determining whether a particular element is a conductor, a semiconductor, or an insulator is - Answer The number of electrons in the valence shell. Elements that are called conductors - Answer ...

BLG1501 Assignment 2 Semester 1 2024 (Solutions) Question 1 Not yet answered Marked out of 2.00 Flag question Question text Hydrolysis is reaction which occurs when Select one: a. a bond of a polymer is broken down through the addition of water molecule. b. two molecules are covalently bonded to each other through the loss of water. c. a double bond is formed between two atoms. d. a triple bond is formed between two atoms. Clear my choice Question 2 Not yet answered Marked o...

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...

Adaptation- - correct answersThe adjustment or changes in behavior, physiology, and structure of an organism to become more suited to an environment. Aerobic- - correct answersA process that requires oxygen. Allele -An alternative form of a gene. An example would be genes that encode eye color—some encode blue eyes (one allele), while others encode brown, green, or hazel eye colors (other alleles). - correct answers amino acids - - correct answersA small organic molecule with the stru...

BIOL 111 FINAL TAMU – FLETCHER QUESTIONS AND ANSWERS 100% SOLVED The element present in all organic molecules is Carbon Cell membranes have distinct inside and outside faces. Which of the following statements is the most likely explanation for the membrane's asymmetrical nature? The two sides of a cell membrane face different environments and carry out different functions Which of the following statements is true about buffer solutions? They maintain a relatively constant pH when either aci...

How should ammeters be used to take measurements in a circuit - ANSWER-Connected in series with the circuit What will happen to the current in a circuit if the resistance is doubled - ANSWER-Current will be halved How do you measure voltage in a circuit - ANSWER-Meter must be parallel with volt being measured What is the outermost shell of an atom called - ANSWER-Valence shell The Nucleus of an atom contains what - ANSWER-Neutrons and protons Whats the E symbol represent in ohms l...

The longer the wavelength the higher the energy of an electromagnetic wave - False Which of the following elements has a valence of two? - Oxygen and Sulfur What type of bond is formed by the equal sharing of valence electrons? - A non-polar covalent bond Polar molecules, such as water, will commonly participate in which of the following intermolecular interactions - Hydrogen bonding with polar molecules. Electrostatic interaction with ionic compounds. Which of the following compounds wou...

Portage Learning BIOD 101 Modules 1, 2,3,4,5, and 6 | Actual Exam Tests Questions With Verified Answers What is matter and what states can it exist in? - ANSWER Matter is anything that takes up space, by having volume, and has mass. Can exist in a solid, liquid, or gaseous state. Explain the difference between essential and trace elements - ANSWER Essential elements are required for human life. Trace elements are only required in small quantities Describe an ionic bond - ANSWER fo...