First electron affinity Study guides, Revision notes & Summaries

microbe living single-celled organism that requires a microscope and has the capacity to reproduce some microbes can be seen without a microscope naming system used:________; 1st word: _________________; always ____________; 2nd word: _______________; full name is always: ____________ binomial; genus --> capitalized; specific epithet; italicized or underlined Who built the compound microscope and coined the term "cell"? Robert Hooke Who first observe...

ACS GEN CHEM 1 FINAL Exam 166 Questions with Verified Answers The physical material of the universe. It is anything that has mass and occupies space. - CORRECT ANSWER Matter is made up of relatively few elements. - CORRECT ANSWER Matter The smallest building block of matter. Smallest particle that retains the chemical property of the element (O, He, S). - CORRECT ANSWER Atom Each _______ is made of the same kind of atom - CORRECT ANSWER Element Combination of atoms held together i...

PRE-ASSESSMENT: BIOCHEMISTRY PJEO Attempt #2 Status: Passed 1. Which mRNA sequence results in a polypeptide that contains three amino acids? 5' - CUU GAU ACU UAG - 3' 5' - UAU GCC CUA CGA - 3' 5' - AUC CAG UAA AAG - 3' 5' - GUC UGA CAC CGG - 3' 2. Which RNA sequence would end in the following polypeptide? Phe-Thr-Val-Stop 5' - UUC ACA GUA UAA - 3' 5' - UUU UAU GUU UGG - 3' 5' - UUC CAU UGA GUA - 3' 5' - AAU AUG ACA CUU - 3...

Atomic radius - Answer Size of the atom. Decreases in size with increasing protons or if atom loses electrons (cation) Increases in size with more shells or if atom gains electrons (anion). First Ionisation energy - Answer The energy needed to remove one mole of electrons from an atom in its gaseous atom First ionisation energy down groups - Answer Decreases More shells = more shielding = weaker attraction = easier (less energy) to lose one electron First ionisation ener...

Gizmos Student Exploration: Ionic Bonds Answers Key 2023. Each atom consists of a central nucleus and several shells that contain electrons. The outermost electrons are called valence electrons. (Inner electrons are not shown.) How many valence electrons does each atom have? Sodium: 1 Chlorine: 7 2. Click Pause ( ). Elements can be classified as metals and nonmetals. Metals do not hold on to their valence electrons very tightly, while nonmetals hold their electrons tightly. Electron affinit...

Chem and Physics section - correct answer What atom is the site of covalent attachment of AMC to the model tetrapeptide used in the studies? - correct answer Because AMC is attached to the peptide on the carboxyl side. This suggests that an amide linkage involving the N atom in AMC is used to covalently attach the fluorophore to the peptide *a peptide bond between amino acids= covalent bond between carboxyl group of 1 amino acid to amino group of other, releasing water What expression give...

PRE-ASSESSMENT: BIOCHEMISTRY PJEO Attempt #2 Status: Passed 1. Which mRNA sequence results in a polypeptide that contains three amino acids? 5' - CUU GAU ACU UAG - 3' 5' - UAU GCC CUA CGA - 3' 5' - AUC CAG UAA AAG - 3' 5' - GUC UGA CAC CGG - 3' 2. Which RNA sequence would end in the following polypeptide? Phe-Thr-Val-Stop 5' - UUC ACA GUA UAA - 3' 5' - UUU UAU GUU UGG - 3' 5' - UUC CAU UGA GUA - 3' 5' - AAU AUG ACA CUU - 3...

BIOCHEMISTRY ACS EXAM QUESTIONS WITH 100% CORRECT ANSWERS Unfolds proteins and gives them uniform negative charge. - answerSDS Reacts with the N-terminus of the protein to produce a 2,4-dinitrophenol derivative that labels the first residue. Can repeat hydrolysis to determine sequential amino acids - answerFDNB Reduces disulfide bonds. - answerDTT Adds carboxymethyl group on free -SH groups. Blocks disulfide bonding. - answerIodoacetate Bonds between two -SH groups that form between 2°...

periodic table - ANSWER-an arrangement of the elements in order of their atomic numbers so that elements with similar properties fall in the same column, or group periodic law - ANSWER-"the physical and chemical properties of the elements are periodic functions of their atomic numbers" atomic radius - ANSWER-defined as ½ the distance between the nuclei of identical atoms that are bonded together ion - ANSWER-an atom or group of bonded atoms that has a positive or negative charge i...

microbe - Answer a living organism that requires a microscope to be seen 2 types of microbial organisms - Answer prokaryotes [cell lacks nucleus] -archaea -bacteria eukaryotes [cell w/ nucleus] -algae/plants -fungi/animals -protists 3 domains of life - Answer Bacteria, Archaea, Eukarya normal microbiota - Answer microbes normally present in and on the human body aid digestion prevent diseases by competing with pathogen microorganisms in environment - Answer recycling of n...