Atom and Electrons Strongest Bonds Essay

Submitted By Jenny5544

Words: 483

Pages: 2

Open Document

The distribution of electrons determines an atoms chemical properties -
Atoms with incomplete outer shells tend to react so that both atoms end up with completed outer shells

Covalent bonds join atoms into molecules through electron sharing-
Covalent bonds sharing electrons strongest bonds two or more atoms help together by covalent bond is a molecule

Water is polar covalent because electronegativity

Ionic bonds are attractions between ions of opposite charge an ion is an atom or molecule with an electrical charge resulting from gain or loss of electrons
a. when an electron is lost, a positive charge results
b. when an electron is gained a negative charge result
Chemical reaction makes and breaks chemical bond.
Remember that the structure of atoms and molecules determines the way they behave
a. Remember that atoms combine to form molecules
b. Chemical reactions do not create
Cohesion is molecules that are the same like to be together (same type of things like to stick together, ex: water likes to hang with water)
Cohesion is much stronger for water than other liquids
Adhesion is two kinds of molecules there not the same but they like to hang together
Cohesion ---------- surface tension
Hydrogen bonds moderate temperature
Ice is less dense than liquid water
Hydrogen bonds are stable
Water is the solvent of life a solution is a liquid consisting of a uniform mixture of two or more substances
1. the dissolving agent is the solvent
2. the substance that is dissolved is the solute
3. an aqueous solution is one in which water is the solvent anthing that is polar or a charge will dissolve in water a polar thing can dissolve a polar thing like dissolve like

The chemistry of life is sensitive to acid and basic condition a compound that releases H+ to a solution is an acid a compound that accepts H+ is a base
A buffer is

Importance Of Elements In Chemistry

comprise living organisms. These elements join together through various bonds to form organic molecules. Elements are substances that cannot be further broken down into other substances. Each element is made up of only one type of atom. An atom is the smallest unit of matter that still retains the properties of a specific element. Three subatomic particles comprise an atom: protons that have positive electrical charges, electrons that have negative electrical charges, and neutrons that have no electrical…

Words 1189 - Pages 5

Carbon Chemistry Essay

The strength of the interaction depends on the magnitudes of the bond dipoles and the shape of the molecule. * For molecules of approx equal molecular mass and size, intermolecular attractions increase with increasing polarity. * Thus, boiling point increases with increased polarity. * Hydrogen Bonding * Attraction between the hydrogen atom in a polar bond. * H is attached to a very electronegative atom. * Electronegativity increases as you go along and up the…

Words 642 - Pages 3

workfile chp. 1 2 Essay

Chapters 1 and 2 Workfile Study Sheet 1. If carbon has an atomic mass of 12 and an atomic number of 6, how many electrons does it have? 6 2. What is “discovery-based science?” A collection of analysis of data without the need for a preconceived hypothesis. 3. What is a “theory?” Broad explanation of some aspects of the natural world that is substantiated by a large body of evidence. 4. Describe the two words that makeup the scientific name. Genus and species 5. What is an isotope?…

Words 497 - Pages 2

Questions On Ammonia

Key questions: 2.The element is built and behaves in a way that makes this happen. When you energize the element, the electrons get excited and gain energy. This causes them to jump up into other shells, having higher states of energy. The electrons quickly crash back down, though. This crash releases the loss of energy in the form of light (photons). The further the fall, the greater the energy loss, the higher energy the photon(s). So (these are just random numbers I'm throwing…

Words 975 - Pages 4

Biology Chap 2 Essay

Properties depend on the structure of its atoms An atom is the smallest unit of matter that retains the properties of an element Subatomic Particles Atoms are composed of even tinier bits of matter called subatomic particles Neutrons (neutral) Protons (+) Electrons (-) Protons and Neutrons are packed together in the atomic nucleus Positive charge The rapidly moving electrons form a “cloud” around the nucleus The opposite forms of attraction keep the atoms circulating the nucleus Dalton- the measurement…

Words 2248 - Pages 9

Inter Molecular Forces Extra Credit Essay

GreenHead A.K.A. Mr.Johnson. Which pretty much tells the difference between substances and compounds with the structur, syways Intermolecular forces are forces of attraction or repulsion which act between neighboring particles (atoms, molecules or ions). They are weak compared to the intramolecular forces, the forces which keep a molecule together. In general, intermolecular forces can be divided into several categories. The most popular prominent…

Words 530 - Pages 3

Chapter Two Study Guide for Honors Anatomy Essay

The nucleus and the electron cloud (electrons, neutrons, protons); protons and neutrons in the nucleus, and electrons in the electron cloud. 2. The atomic mass number is the sum of the protons and neutrons in the nucleus, where as atomic number is just the number of protons. 3. An atom of an element with a different mass number than another atom of that same element. Carbon-12.01 in an isotope the mass could be 16. 4. Ionic bonds form b/w ions. These bonds involve cations and…

Words 542 - Pages 3

a&p chapter 1 Essay

organization… Lowest level of body organization Atoms build molecules and form matter Atoms and molecules release and store energy in chemical reactions Chemistry Science of structure and interactions of matter All body activities are chemical in nature Energy for life ATP Atom A + Atom B A-B Can make ATP from glucose element element chemical bond Catabolism: Need to break chemical bond to use energy (ATP) Anabolism: making the bond Matter: occupies space and has mass in…

Words 2175 - Pages 9

HO 220 Notes 01 Ch01 02 Klein F2014 Essay

Organic Molecules I. Types of Chemical Bonds A. Why do atoms forms bonds?  Atoms want to have the same number of electrons as the nearest noble gas atom (noble gas configuration). This requires having a completely full or completely empty valence shell of electrons.  Most main groups atoms will try to have eight valence electrons to completely fill their valence shell; this is the octet rule. There are some exceptions: hydrogen only needs two electrons (duet rule), and boron and aluminum are…

Words 7174 - Pages 29

Chapter 2 Chemistry Essay

Co Cu, Zn  96% body mass – C, H, O, N Structure of Atoms All chemical elements are made of atoms. Atoms contain:  Nucleus: protons (p+) & neutrons (no)  Electrons (e-) surround the nucleus as a cloud Electrons Electrons are very small and light Revolve around the atomic nucleus in orbits or shells Negatively charged # of protons = # of electrons Atoms – electrically neutral Protons & Neutrons Protons and neutrons - nucleus of an atom Neutrons - neutral Protons - positively-charged particles…

Words 1995 - Pages 8