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What element from the periodic table has the atomic number fifty seven?
Lanthanum See Related Link
What is The atomic mass of an element whose atoms consist of seven protons eight neutrons and seven electrons?
The atomic mass of an element is the sum of the number of protons and neutrons in the nucleus of an atom. In this case, the element has 7 protons and 8 neutrons, so the atomic mass would be 7 + 8 = 15 atomic mass units.
If an element has 9 electrons how many should be in the second shell?
There should be seven in the second shell and two in the first. The element in question is fluorine, which has the atomic number 9, the same as the number of its protons and electrons.
Why is atomic number better than atomic mass for organizing the elements in the periodic table?
Atomic number is a unique number for each element. No two elements have the same atomic number. Atomic number is also the number of protons in the nuclei of the atoms of any given atom. Atomic mass, however, is the number of protons, neutrons and electrons. The number of neutrons can vary with different isotopes of the same element, this means that atomic mass can vary with different isotopes. So atomic number does not vary, but atomic mass does, so it is more logical to use atomic number to organize the elements. In addition, when the elements are arranged according to atomic number into seven rows and 18 columns, it becomes evident that there are certain trends that occur across the periods, and that elements in the same group have similar properties.
How many protons electrons and neutrons are in an atom with an atomic number of seventy nine and an atomic mass of one hundred ninety seven?
59 = # of protons and # of electons 59 protons make up 59 of the mass number (electons have an insignificant mass), so the rest of the mass must be from neutrons: 96 - 59 = 37 neutrons
What element has the Atomic number forty-seven?
Silver is a metal element. Atomic number of it is 47.
The atomic number of an element is six What is the number of protons in the nucleus of that atom?
For any periodic element, its atomic number correlates directly with its number of protons. Thus, an element with an atomic number of six has six protons, with an atomic number of seven, seven protons, and so on.
What element has an atomic number seven?
Nitrogen
What element has the atomic number of seven?
The answer is: Nitrogen.
What has a mass number of seven?
Lithium is an element with an atomic number of 3 and an atomic mass of 7.
What element has an atomic number of forty-seven and is used photograph film?
Silver (Ag) has an atomic number of 47 and is used in photography.
What element has the atomic number of forty-seven?
Silver, with symbol Ag.
What is the atomic number for the element cobalt?
Cobalt, is in the metal family. The atomic number for the element of cobalt, (word steaming from the German meaning for evil spirit, and goblin) is twenty seven.
Has an atomic number of 7?
Could you please re-ask your question in a better manner, because that question does not make sense. Are you trying to ask the atomic mass of the element with the atomic number of 7? or are you just stating that there is an element with the atomic number of 7? because that is not a very good question.
What is 77777777777777777777?
seventy seven quintillion, seven hundred seventy seven quadrillion, seven hundred seventy seven trillion, seven hundred seventy seven billion, sevenhundred seventy seven million, seven hundred seventy seven thousand, seven hundred seventy seven. :-)
What element from the periodic table has the atomic number fifty seven?
Lanthanum See Related Link
What is The atomic mass of an element whose atoms consist of seven protons eight neutrons and seven electrons?
The atomic mass of an element is the sum of the number of protons and neutrons in the nucleus of an atom. In this case, the element has 7 protons and 8 neutrons, so the atomic mass would be 7 + 8 = 15 atomic mass units.
