represents an atomic number
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What does atomic mass and atomic number represent? atomic number represents the protons in atom. As a example hydrogen has one proton and atomic number is 1.
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- In Bohr's atomic model, the  N designates a principal quantum number.
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- Mass number minus the atomic number equals the number of neutrons. Mass number is the number of particles in an atom that have significant mass. Electrons are assigned a val…ue of 0 since the mass is so much smaller than protons and neutrons. Protons and neutrons are similar in mass and are assigned mass number of 1.
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What is the atomic number for fluorine? Fluorine is located in period 2, group 17 of the periodic table and has an atomic number equal to 9. An element's atomic number represents the number of protons it has in its nucleus; as you can see in the above diagram, fluorine has 9 protons in its nucleus => its atomic number will be equal to 9.
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- This number, which appears on the periodic table underneath the chemical symbol for neon, Ne, represents the weighted average... The atomic mass of the element neon is 20.18 amu, or atomic mass units. This number, which appears on the periodic table underneath the chemical symbol for neon, Ne, represents the weighted average...
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The Periodic Table Atomic number describes the number of protons in one atom of that element. For example, an atom of oxygen contains 8 protons. Elements are listed in order of increasing atomic number from left to right. Each row of the periodic table is called a period and each column of the periodic table is called a group (or family).
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Measures of Central Tendency Another commonly used measure of central tendency in specific cases is the mode. The mode is simply the most commonly occurring value. For example, in a class of 50 students graded on a scale of 1-5, the distribution may be as shown in the figure.The mode of this data is 4. Different types of data need different measures of central tendency to describe the distribution of data.he mode is simply the most commonly occurring value. For example, in a class of 50 students graded on a scale of 1-5, the distribution may be as shown in the figure. The mode of this data is 4.
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What does an atomic number represent? See Atomic number for more details and references. The atomic number of a chemical element (also known as its proton number) is the number of protons found in the nucleus of an atom of that element, and therefore identical to the charge number of the nucleus.
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What does an atomic number represent? The atomic number represents or stands for the distinct identity of a chemical element. It is usually defined as the number or protons present in an atom of an element, which is also equal to the number of electrons.
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- Obviously atomic number = no of protons = total number of electrons in an atom. Sodium 2,8,1 (1s1 2s2 2p6 3s1) has 13 electrons and is a group 1 element so has 1 valence electron (1 electron in outer shell). So 12 core and 1 valence.
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Translations for atomic number Noun. 1. atomic number-the order of an element in Mendeleyev's table of the elements; equal to the number of protons in the nucleus or electrons in the neutral state of an atom of an element.
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atomic number In electrically neutral atoms, this number is also equal to the number of electrons orbiting about the atom's nucleus. The atomic number of an element determines its position in the Periodic Table, and is usually denoted by the letter Z and written as a subscript before an element's symbol, as in 92U.
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Atomic Number and Mass Number Atomic Number (Z) = Number of protons =Number of electrons. For example, an atom of magnesium contains 12 protons, therefore, its atomic number is 12. All the atoms of a particular element contain same number of protons in their nuclei. Therefore, all the atoms of an element have same atomic number.
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The Periodic Table As you move across a period the atomic number increases. Similarly, as you move down a group the atomic number increases. In this way, the atomic number represents exactly where in the periodic table an element stands.
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The  Aims of âthe Big Threeâ He was a History professor. He wanted to make the world safe. He wanted to end war by making a fair peace. In 1918, Wilson published Fourteen Points saying what he wanted. He said that he wanted disarmament, and a League of Nations (where countries could talk out their problems, without war). He also promised self-determination for the peoples of Eastern Europe.
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CONTENTS Nucleons are either protons or neutrons and the total number of nucleons is given the symbol A (also known as the mass number). The total number of protons within the nucleus is called the atomic number and given the symbol Z.Protons and neutrons have a mass of 1, protons are positively charged and neutrons have no charge. 1  A (mass number): total number of nucleons = protons + neutrons.2  Z (atomic number): number of protons. great many different configurations of the nucleus may occur. In each case, the atomic number defines the element, i.e. it is the number of protons that determines that carbon (having 6 protons) is carbon.
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Neutron Atomic nuclei are formed by a number of protons, Z the atomic number, and a number of neutrons, N the neutron number, bound together by the nuclear force. The atomic number defines the chemical properties of the atom, and the neutron number determines the isotope or nuclide.
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- Strasburg goes for sweep in Atlanta. The Braves could be getting some power back into their lineup when outfielder Matt Kemp returns from the disabled list for Thursday's series finale against the Nationals at SunTrust Park. First pitch is scheduled for 7:35 p.m. ET.
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Forex Market Open Hours New York Session The New York session starts just after lunch in London, this reactivates the market which often drifts sideways for an hour or two. New York might be the largest Stock market in the world but in Forex its share of trading for April 2013 was 18.9% according to the BIS report. This session starts at 13:00 GMT and finishes at 22:00 GMT. It also brings important economic data for the afternoon which helps revive the market. This session will show most price moves during its first hours of the day where it overlaps with London.
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Translations for atomic number The atomic number, Z, should not be confused with the mass number, A, which is the number of nucleons, the total number of protons and neutrons in the nucleus of an atom. The number of neutrons, N, is known as the neutron number of the atom; thus, A = Z + N (these quantities are always whole numbers).
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The Nucleus: The Center of an Atom In this diagram: 1  X represents the chemical symbol of the element found on the periodic table. 2  Z represents the atomic number. 3  A represents the mass number (also called the atomic weight).
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Translations for atomic number Atomic number. In chemistry and physics, the atomic number is the number of protons found in the nucleus of an atom and therefore identical to the charge number of the nucleus. It is conventionally represented by the symbol Z. The atomic number uniquely identifies a chemical element. In an atom of neutral charge, the atomic number is also equal to the number of electrons. The atomic number, Z, should not be confused with the mass number, A, which is the number of nucleons, the total number of protons and neutrons in the nucleus of an atom.
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Saxophone Buyer's Guide So if an element has an atomic number of 5, you know that it has 5 protons and 5 electrons. The atomic mass (number at the bottom) is the amount of protons and neutrons added together. Whichever you know, you subtract from the atomic mass.
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- Sodium has 11 electrons. Moreover, its atomic number is 11, so it has 11 protons. Needless to say, a valence electron is an electron that is associated with an atom, and that can participate in the formation of a chemical bond.
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Which quantity identifies an element? 1. Atomic number 2. Mass Number 3. total number of neutrons in an atom of the element 4. total number of valence electrons in an atom of the element Atomic number is the number of protons in the atom of an element, which is different for every element. 1  Comments. 2  Report.
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Periodic Table Study Guide - Introduction & History (for a Bohr model)   Also element s…ymbol can be called atomic symbol. The information is the atomic number, also stands for how many electrons and protons there are in that element, also it tells what the atomic abbreviation is and the real name. Each square on the periodic table gives information about an element.