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* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
QUESTION Who first used the word “atom”? ANSWER QUESTION Who developed the first widely accepted atomic theory? QUESTION All matter is made up of what? ANSWER Democritus. ANSWER QUESTION QUESTION QUESTION ANSWER ANSWER QUESTION QUESTION What are the four elements that Aristotle thought made up the Universe? ANSWER Earth, wind, fire, water. QUESTION Is evaporated water a liquid or a gas? ANSWER Gas. Aristotle. Chemical reactions occur when _ _ _ _ _ are rearranged. Atoms. What are the three main subatomic particles? ANSWER Electrons, Neutrons, and Protons. Atoms. Are atoms of the same element identical? Yes. Which is negatively charged: electrons, neutrons, or protons? ANSWER Neutrons. QUESTION Do protons have a negative or positive charge? ANSWER QUESTION Do neutrons have a negative, positive, or no charge? QUESTION An atom’s nucleus is made up of _ _ _ _ _ _ _ and _ _ _ _ _ _ _ _. ANSWER Positive. ANSWER No charge. Protons and neutrons. QUESTION QUESTION QUESTION Are atoms mostly empty space? What is the atomic number of Hydrogen? Who was Aristotle? ANSWER ANSWER ANSWER Yes. 1. A Greek philosopher and theorist. QUESTION QUESTION QUESTION What did Mendeleev create? ANSWER The Periodic Table of Elements. Where was Mendeleev from? ANSWER Russia. What is an ion? ANSWER An atom/molecule with an electric charge due to the loss/gain of electron(s). QUESTION Do solids have a definite volume? ANSWER Yes. QUESTION Do liquids have a definite shape? QUESTION Do solids have a definite shape? ANSWER QUESTION Do liquids have a definite volume? Yes. ANSWER QUESTION QUESTION Do gases have a definite volume? Yes. Do gases have a definite shape? ANSWER ANSWER ANSWER No. No. QUESTION QUESTION QUESTION ANSWER ANSWER Name an element. ANSWER (Any element). Who created the Periodic Table of Elements? Mendeleev. No. What is the phase change from solid to liquid? Melting. QUESTION QUESTION QUESTION ANSWER Vaporization. ANSWER Condensation. ANSWER QUESTION QUESTION QUESTION ANSWER ANSWER What is the phase change from liquid to gas? What is the phase change from solid to gas? Sublimation. QUESTION Does freezing involve the addition or removal of energy? ANSWER Removal. What is the phase change from gas to liquid? What is the phase change from gas to solid? What is the phase change from liquid to solid? Freezing. Does melting involve the addition or removal of energy? Deposition. ANSWER QUESTION QUESTION ANSWER ANSWER Does vaporization involve the addition or removal of energy? Addition. Addition. Does condensation involve the addition or removal of energy? Removal. QUESTION Does sublimation involve the addition or removal of energy? ANSWER QUESTION Does deposition involve the addition or removal of energy? QUESTION What is plasma? ANSWER An ionized gas. ANSWER Removal. Addition. QUESTION What are the four main states of matter? ANSWER QUESTION In which state of matter do particles have the least energy? Solids, liquids, gases, and plasma. ANSWER QUESTION QUESTION Define matter. ANSWER Anything with mass and volume. QUESTION Is heat matter? ANSWER No. Solid. What are the different blocks in the Periodic Table? ANSWER S, D, P, and F. QUESTION What is the pH of a neutral element? ANSWER 7. QUESTION QUESTION QUESTION ANSWER ANSWER ANSWER Is it possible to measure coldness? What is the planetary model of an atom? What is the charge of an electron? No; cold is simply the absence of heat. Atomic theory that elections orbit the Atom similar to planets in a solar system. QUESTION QUESTION ANSWER ANSWER +1. 0. ANSWER QUESTION QUESTION QUESTION What is the charge of a proton? What atomic model theorizes that the subatomic particles were clumped in a ball? ANSWER The Plum Pudding model. What is the charge of a neutron? How many rows are in the Periodic Table of Elements? ANSWER 7. -1. QUESTION Who theorized the atomic Planetary Model? Ernest Rutherford. How many columns are in the Periodic Table of Elements? ANSWER 18. QUESTION What is the pH range of acidic elements? ANSWER Anything less than 7. QUESTION What is the pH of basic/alkaline elements? ANSWER QUESTION How many elements are in the Periodic Table of Elements? Anything greater than 7. ANSWER QUESTION QUESTION ANSWER +1. A positively charged ion. ANSWER QUESTION QUESTION QUESTION QUESTION What is the ionic charge of Potassium (K)? ANSWER What are valence electrons? ANSWER Electrons in the highest energy level. What is a cation? What is an orbital? ANSWER Where electrons are located in an atom. 118. What is an anion? A negatively charged ion. Atoms are mostly _ _ _ _ _ space. ANSWER Empty. QUESTION If there are two protons in neutral atom, how many electrons are there? ANSWER QUESTION If there are four electrons in a neutral atom, how many protons are there? QUESTION Is Helium a noble gas? ANSWER Yes. ANSWER Two. Four. QUESTION QUESTION QUESTION Hydrogen. ANSWER ANSWER QUESTION QUESTION QUESTION ANSWER What experiment did Millikan use to discover the charge of electrons? What is the first element on the Periodic Table of Elements? ANSWER What did J.J. Thomson use to discover the electrons? A Cathode Ray Tube. How many noble gases are in the Periodic Table of Elements? 6. ANSWER His oil drop experiment. How many blocks are in the Periodic Table of Elements? 4. What is the atomic symbol of Oxygen? ANSWER O. QUESTION How many nonmetals are on the Periodic Table of Elements? QUESTION How many metalloids are on the Periodic Table of Elements? QUESTION Who theorized the atomic nucleus? ANSWER ANSWER ANSWER Ernest Rutherford. QUESTION QUESTION QUESTION ANSWER ANSWER 16. How many metals are on the Periodic Table of Elements? ANSWER 9. What is the atomic symbol of Chlorine? What are Cathode Rays made of? Cl. Electrons. QUESTION QUESTION 93. QUESTION List all the noble gases. ANSWER He, Ne, Ar, Kr, Xe, Rn. What is the Latin word for atom? ANSWER Atomos. Who created the Plum Pudding atomic theory? ANSWER J.J. Thomson. QUESTION QUESTION QUESTION ANSWER ANSWER ANSWER QUESTION QUESTION QUESTION ANSWER ANSWER What is the ion formed by Magnesium? Mg+2. What is the compound formed by Magnesium and Flourine? ANSWER What is the ion formed by Phosphorus? P-3. What is the atomic symbol of Flourine? F. Mg1F2. QUESTION Define subatomic particle. ANSWER A particle of matter that is smaller than a Hydrogen atom. QUESTION Who taught 10th grade Chemistry at ICE in 2012? ANSWER Jennifer Dahlstrom. What is the definition of noble gas? Stable, nonreactive gas. What is the Planetary Atomic Model? The atomic theory that elections orbit the Atom similar to planets in a solar system. QUESTION Who created ChemCraft? ANSWER Olivia Bridges Ian WatersBusto Declan Christenberry