6 + (7*2) = 20 The answer is “d” because it does not have eight valence electrons. 64) Explain why each electron structure is incorrect. Replace each structure with one that is more acceptable. a) It is incorrect because neither of the atoms follow the octet rule and doesn’t add up to a correct charge. They don’t have any bonds either. b) The Lewis dot structure doesn’t follow the octet rule‚ have the correct number of electrons‚ or any bonds. 74) Ethyl alcohol
Premium Covalent bond Chemical bond Atom
involves the sharing of pairs of electrons between atoms. A compound is made when two or more atoms form a chemical bond‚ linking them together. The two types of bonds are ionic bonds and covalent bonds. In an ionic bond‚ the atoms are bound together by the attraction between oppositely charged ions. If the electron is shared equally between the atoms forming a covalent bond‚ then the bond is said to be nonpolar. An electron is more attracted to one atom than to another which forming a polar covalent
Premium Covalent bond Ionic bond Chemical bond
Rutherford spent his life studying radioactive elements and their importance to our world. Rutherford made the groundbreaking discovery that nearly the total mass of an atom is concentrated in a nucleus.He also found that radioactive elements have "half-lives." In so doing‚ he gave birth to the nuclear model‚ a discovery that marked the inception of nuclear physics‚ leading to his win of the Nobel Prize in Chemistry. This
Premium Nuclear fission Uranium Nuclear weapon
experimental evidences for i) strong repulsive force ii) strong attractive force between atoms in a solid. (b) A simple model for the oxygen molecule consists of two equal masses connected by a light spring . The atoms oscillate along their lines of centre while the midpoint of the spring remains fixed. i) Write down an expression for the frequency of oscillation of one oxygen atom in terms of its mass m and the force constant K of one half of the spring. How is K related to the force
Premium Chemical reaction Chemistry Oxygen
POWER ATOM TV SUBMITTED BY DEWESH J RR 1908 A 21 SUBMITTED TO SAVITA MAM L S B MARKETING PLAN OF POWER ATOM The marketing plan
Premium Backlight Marketing Management
The Arrangement of Electrons in the Atom An energy level is defined as the fixed energy value that an electron in an atom may have. Bohr’s Theory 1. Electrons revolve around the nucleus in orbitals 2. The electrons in an orbit have a fixed energy Note: Orbitals are also known as energy levels 3. As long as an electron is not in any one particular energy level‚ it neither gains or loses energy 4. When an atom absorbs energy it jumps to a higher energy level Note: They do not remain
Premium Chemical element Periodic table Atom
class with the periodic table. 2. Johnny couldn’t find Sodium Chloride on the periodic table because Sodium Chloride is a molecule made up of two atoms: Sodium and Chloride. 3. Sodium Chloride represents two atoms that together form a molecule: NaCl. Na: Sodium and Cl: Chloride 4. An ionic bond occurs when two or more ions (an atom whose number of elections differs from its number of protons) bond together because of their opposite charge. They are drawn to each other like magnets
Premium Atom Chemistry
Describe the difference between a mixture and a compound. A compound is a substance in which atoms of different elements are chemically held to one another. A mixture is a substance made by combining two or more different materials in such a way that no chemical reaction occurs. A mixture can usually be separated back into its original components‚ a compound cannot. Below are some examples of the differences between each. Compounds •Compounds are pure substances. •They are made up of two or more
Premium Chemical bond Atom Ionic bond
sulphide (FeS[pic] [pic])‚ calcium carbonate (CaCO[pic]3[pic][pic] [pic]) and water (H[pic]2[pic]O[pic] [pic]). • When naming compounds and writing their chemical formula‚ it is important to know the elements that are in the compound‚ how many atoms of each of these elements will combine in the
Free Atom Chemical bond Chemistry
for the procedure. The first step is to sort the 3 different types of candies (atoms) into 3 different isotopes. Secondly‚ we have to count all the atoms of each isotope and record the numbers
Premium Chemistry Chemical element Water