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What does the number at the upper left corner of each element represent?
Wiki User
∙ 11y ago
That is the element's mean Atomic Mass. It's the average atomic mass of the element as found in nature, taking into account how abundant each isotope of the element is in nature. The number of protons in an atom determines what element it is, but not all atoms of many elements have the same number of neutrons in nature. The total number of protons and neutrons determines which isotope of the element it is, and almost all of an atom's mass is in its protons and neutrons. Atomic mass is measured in atomic mass units (amu). One atomic mass unit is equal to one twelfth of the mass of a carbon-12 atom in its ground state. That is approximately 1.660539 yoctograms (a yoctogram is a trillionth of a trillionth of a gram).
Wiki User
∙ 10y ago
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What do upper case letter represent in medndeline genetics?
Dominant character Dominant character Dominant character
What does k stand for in periodic table?
All symbols in the periodic table begin with UPPER CASE letters. K in the periodic table represents the element POTASSIUM.
What three things can you predict about an element because of its position on the periodic table?
how many electrons it has---how many valence electrons and how many levels of electrons. its Atomic Mass its atomic number
What is chemical symbol Cl?
Cl is the symbol for chlorine. Watch out when you write chemical symbols that you correctly use upper and lower case! The superscript minus sign tells you that the chlorine has gained an electron and become a chloride ion, negatively charged.
How does a 240v water heater thermostat work?
Most home hot water heaters have both an upper thermostat and heating element, and a lower thermostat and heating element. First the upper stat and element come on and then when that section of the tank is hot enough, the upper stat switches power off to the upper element and sends power down to the lower stat and element. At this point the lower section of the water tank warms up to the setting on the lower stat. (Both stats should be set the same, typically around 130 degrees. This results in about 120 water delivered to the taps, a safe setting. Use a meat thermometer in a glass to test at the taps. Let it run several minutes to allow the home piping system to come up to temperature.) Once satisfied, both elements are then off until one of the two stats decide that the temp is low enough to switch on again, depending on which section of the tank gets cooler faster. But once the upper stat starts heating again, the lower stat and element must wait for it to finish in order to again receive power for the lower section. Typically a home owner will eventually notice that the water heater cannot keep up with the demand for hot water, which usually means that either one of the stats has stuck or failed, or one of the elements has burnt open and no longer produces heat for its section. Unless you are a professional, it can be tricky to figure out the correct troubleshooting procedure, so it's good practice to simply change both stats and both elements at the same time. The parts are cheap and available at most Home Depot or similar outlets. Be sure to turn the 240 volt circuit breaker off before attempting to service, and sketch out a simple map with wire colors, terminal numbers, etc, so as to get it back together correctly.
What is the number on the upper right hand corner of every element on the Periodic Chart?
The Atomic Number
Can you find the atomic number of an element on the periodic table?
Atomic number of an element can be found on the periodic table. It is located at the upper left-hand corner of the table.
How do you find Atomicity of an element?
The atomic number of an element can be found on most any Periodic Table of Elements. The atomic number is found in the upper left hand corner of the element's square. The number represents the number of protons one atom of the element has.
What do the roman numerals represent when naming a chemical name?
I took chem. last year and if I remember correctly it names the number of atoms the element and example is FeII (II is small in the upper right hand corner of the Fe(iron) element if has to do with balancing equations when chemicals mix, google element charges and see what that does 4 you , later.
Can atomic number be found on the periodic table?
The atomic number is the number located in the upper left corner of the element on the periodic table. Elements are listed in order of increasing atomic number.
Which element does X represent in the following expression 32X15?
The isotope 32X (with subscript 15) is phosphorus(32P).The upper number is the atomic mass number and the lower is the atomic number.
What is the atomic number where is it located in the periodic table?
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. It is located in the upper left hand corner of every box on the periodic table.
How atomic number is expressed?
The atomic number is equal to the number of protons of that particular element. Sometimes it is displayed as lower-left corner subscript, while the massnumber of an isotope of that element is displayed at the upper-left superscrip.Example: Uranium(235) is written as 92235Uor 23592U .
What do you draw on the red door in isle of ruins?
first draw from the upper left corner to the upper right corner then to the lower right corner from there to the middle next to the lower left corner finally up to the upper left corner then stopfirst draw from the upper left corner to the upper right corner then to the lower right corner from there to the middle next to the lower left corner finally up to the upper left corner then stopfirst draw from the upper left corner to the upper right corner then to the lower right corner from there to the middle next to the lower left corner finally up to the upper left corner then stopfirst draw from the upper left corner to the upper right corner then to the lower right corner from there to the middle next to the lower left corner finally up to the upper left corner then stopfirst draw from the upper left corner to the upper right corner then to the lower right corner from there to the middle next to the lower left corner finally up to the upper left corner then stopfirst draw from the upper left corner to the upper right corner then to the lower right corner from there to the middle next to the lower left corner finally up to the upper left corner then stopfirst draw from the upper left corner to the upper right corner then to the lower right corner from there to the middle next to the lower left corner finally up to the upper left corner then stopfirst draw from the upper left corner to the upper right corner then to the lower right corner from there to the middle next to the lower left corner finally up to the upper left corner then stop
Where is the serial number located on a fisher boat?
On the back right upper corner.
WHERE CAN I Ford Escape 2004 find serial number?
Usually the vin number is in the upper left-hand corner of the dash-board near the corner of the windshield.
What information in the peridodic table indicates the number of protons in an atom?
The atomic number. This is located in the upper left hand corner of every box that contains a symbol of an element. For example, the atomic number of hydrogen (H) is 1. 1 atom of Hydrogen has 1 proton.
