which statement is true about atoms
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Which statement is true about an atom and an element? An atom can be broken down into different substances and an element is formed when two or more atoms combine. An atom is made of identical elements and an element retains all of the characteristics of a particular atom. An atom is the smallest unit of matter and an element is a pure substance that is made of identical atoms. An atom is the smallest unit of matter and an element is a pure substance that is made of identical atoms is correct. Although atoms can be broken down further now, it still take a whole atom to make an element. This question is archived.
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- The charge of an atom is determined by the number of electrons an atom has compared to the number of protons an atom has. If they are equal the atom has a neutral charge. If t…he number of protons is greater, the atom is positively charged. Such atoms commonly are unstable and will decay in time emitting radiation.
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Atom An atom is the basic unit that makes up all matter. There are many different types of atoms, each with its own name, mass and size. These different atoms are called chemical elements. The chemical elements are organized on the periodic table. Examples of elements are hydrogen and gold.
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Chapter 3: Atoms: The Building Blocks of Matter. Dalton's Atomic Theory (John Dalton). 1. All matter is the composed of extremly small particles called atoms 2. Atoms of a given element are identical in size mass and other properties atoms of a different elements differ in size, mass, and other properties (not true because the mass is always different 3.
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The Bohr atom Thus what Bohr was saying, in effect, is that the atom can exist only in certain discrete energy states: the energy of the atom is quantized. Bohr noted that this quantization nicely explained the observed emission spectrum of the hydrogen atom.
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How long does Concerta stay in your system? Which statement about cells is true?Select one of the options below as your answer: A. They vary in size but are all the same shape. B. They vary in shape but are all the same size. C. They vary in size and shape. D. They are the same size and shape.
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What is Qatum Physics? Atoms are so small that there are millions and billions and trillions in the tiniest speck you can see. Solids, liquids, gases - all matter - are made up of atoms (or other things, like molecules, that are made from atoms)! ELEMENTS are the kinds of atoms that we can have. Carbon is an element, hydrogen is an element, and so is oxygen. (We can call them by their names, or by their symbols - C for carbon, H for hydrogen, and O for oxygen.) All the elements are listed out in a periodic table. If it's in the table, it's an element!
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- ATOMS: ATOMIC STRUCTURE QUESTIONS AND ANSWERS . QUESTION ONE: MODELS OF THE ATOM (2011;1) At different times scientists have proposed various descriptions or models of the atom to match experimental evidence available. (a) The model that Thomson proposed was called the plum-pudding model. Describe this model.
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Atoms and elements The atomic mass is the number of portions and neutrons in an atom. Although all atoms of the same element have the same number of protons, they sometimes have more neutrons. Such atoms are called isotopes. For example, hydrogen has three isotopes. Most of the time a hydrogen atom has one proton and one neutron.
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- OpenStudy is now Brainly! Which statement is true?Select one of the options below as your answer: A. Gas atoms subjected to electricity emit bright lines. B. Gas atoms absorb white light and emit a continuous spectrum of light. C. Gas atoms under high pressure emit dark lines against a continuous spectrum. D. Gas atoms heated to a high temperature emit white light. E.
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Questions and Answers Atoms can join together to form molecules, which in turn form most of the objects around you. Atoms are composed of particles called protons, electrons and neutrons. Protons carry a positive electrical charge, electrons carry a negative electrical charge and neutrons carry no electrical charge at all. The protons and neutrons cluster together in the central part of the atom, called the nucleus, and the electrons 'orbit' the nucleus.
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- Protons, found in the nucleus, are positive. Protons determine what atom is. Atoms with 2 protons in the nucleus are Helium atoms. Atoms with 6 protons in the nucleus are Carbon atoms. Atoms with 92 protons are Uranium atoms. James Chadwick identified neutrons 20 years later.
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OpenStudy is now Brainly! join brainly today. Which statement is true?Select one of the options below as your answer: A. Gas atoms subjected to electricity emit bright lines. B. Gas atoms absorb white light and emit a continuous spectrum of light. C. Gas atoms under high pressure emit dark lines against a continuous spectrum. D. Gas atoms heated to a high temperature emit white light. E.
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What is an Atom? The term atom comes from the Greek word for indivisible, because it was once thought that atoms were the smallest things in the universe and could not be divided. We now know that atoms are made up of three particles: protons, neutrons and electrons — which are composed of even smaller particles such as quarks.
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Question: Which of the following statements is true? 1. Atoms with low ionization energies and low electron... only on the value of the ionization energy of. the atom. 3. The electronegativity of an atom is de-. fined as 1/2(Electron Affinity) of the atom. 4. Atoms with high ionization energies and. high electron affinities have low electronega-. tivities.
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- Atoms are made up of protons, neutrons and electrons, also known as subatomic particles. Because an atom is neutral, the number of electrons is equal to the number of protons. Electrons circle the nucleus, which is made up of protons and neutrons.
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Questions and Answers You are asking the right questions, and if you extend the question a little bit, I think you would probably have one of those Eureka! moments of discovery. Yes, all things are made of atoms, and all atoms are made of the same three basic particles - protons, neutrons, and electrons. But, all atoms are not the same. You know that the number of protons in an atom determines what element you have. For instance hydrogen has one proton, carbon has six. The difference in the number of protons and neutrons in atoms account for many of the different properties of elements.
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- Atoms and molecules of all matter are always moving. This is true for atoms or molecules of solids, liquids, and gases. Even when objects that are made up of these atoms and molecules appear not to be moving, the atoms and molecules that make up those objects are nonetheless themselves in constant motion.
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Chapter 3 Study Guide The Chemistry of Organic Molecules Flashcards Which of these statements is NOT true about DNA? it contains the sugar ribose it forms a double helix adenine pairs with thymine and guanine pairs with cytosine it is the genetic material of the cell the sugar and phosphate groups form the backbone of the molecule.
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Energy, Plants & Man Atomic Theory of Matter: ( 1 Dalton's Postulates) ( 2 a) All matter is composed of small, indivisible particles called atoms. ( 3 b) All atoms of a given element are identical in mass and properties. ( 4 c) Compounds are formed by a combination of two or more atoms in definite arrangements in the ratio of small whole numbers.
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Dalton's Atomic Theory 1 Atoms can neither be created nor destroyed in a chemical reaction. 2  Atoms of the same element are identical in all respects, having the same size, shape and structure, and especially mass. 3  Atoms of different elements have different properties and different masses.
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Pesticide Pesticides can be classified by target organism (e.g., herbicides, insecticides, fungicides, rodenticides, and pediculicides - see table), chemical structure (e.g., organic, inorganic, synthetic, or biological (biopesticide), although the distinction can sometimes blur), and physical state (e.g. gaseous (fumigant)).
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- Which statement correctly describes glucose (C6H12O6)? It is made of matter and contains twenty-four molecules. It is an element made of three types of atoms. It is an atom made up of carbon, hydrogen, and oxygen. It is a compound made of twenty-four total atoms of three different elements.
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- A. atoms are only about 10-10 m across. B. the atom is the smallest particle that uniquely defines an element, like a fingerprint. C. atoms are comprised of a nucleus and a cloud of electrons. D. all of the above three answers are correct.
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What Statement Best Describes a Compound? Water, for example, has two atoms of hydrogen and one atom of oxygen in a ratio of 2:1. All three of these atoms are connected by chemical bonds, which can take the form of covalent bonds, ionic bonds or electrostatic interactions. The nature of the bonds and the elements determines the shape of a compound.
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Introduction Atomic number, atomic mass, and relative atomic mass. Atoms of each element contain a characteristic number of protons. In fact, the number of protons determines what atom we are looking at (e.g., all atoms with six protons are carbon atoms); the number of protons in an atom is called the atomic number.