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The atomic mass of iodine is less than the atomic mass?
The atomic mass of iodine is about 126.9 g/mol, which is indeed less than the atomic mass of many other elements. This low atomic mass for iodine is due to its position in the periodic table and the number of protons and neutrons in its nucleus.
How would the periodic table look different if it were arranged according to the atomic mass?
If the periodic table were arranged by atomic mass, some elements would be in a different order compared to the current arrangement by atomic number. This would mean elements with similar atomic masses would be grouped together, rather than by atomic number. The trends and patterns in the properties of elements might be less clear compared to the current layout based on atomic number.
What element has an atomic number lower that that of aluminum and one less valence electrons than the group 16 elements?
Nitrogen
What have more protons than chlorine but less than potassium?
Elements that have more protons than chlorine (atomic number 17) but fewer than potassium (atomic number 19) are sulfur (atomic number 16) and argon (atomic number 18). Therefore, the only element that fits this criterion is argon, which has 18 protons.
This element has the lowest atomic number in group 16?
Nitrogen
The atomic mass of iodine is less than the atomic mass?
The atomic mass of iodine is about 126.9 g/mol, which is indeed less than the atomic mass of many other elements. This low atomic mass for iodine is due to its position in the periodic table and the number of protons and neutrons in its nucleus.
Does Alpha decay results the lighter elements?
Yes, daughter element has atomic number two units less and atomic mass four units less.
How would the periodic table look different if it were arranged according to the atomic mass?
If the periodic table were arranged by atomic mass, some elements would be in a different order compared to the current arrangement by atomic number. This would mean elements with similar atomic masses would be grouped together, rather than by atomic number. The trends and patterns in the properties of elements might be less clear compared to the current layout based on atomic number.
Are the number in the periodic table are arranged by atomic mass?
No all he elements on the Periodic Table are arranged by the atomic number because some element are lighter than other and have more or less protons in the nucleus of the atom( The number of protons in an atom is the atomic number).
How are period arranged on the periodic table?
The elements are arranged in order of increasing atomic number in the Periodic Table. The rows are called periods and the columns are called groups.
What element has an atomic number lower that that of aluminum and one less valence electrons than the group 16 elements?
Nitrogen
7 less then twice a number?
Let the number be x Twice a number means 2x 7 less than twice a number means 2x-7
How many elements under atomic number 101 have names ending with ium?
Well, darling, elements with names ending in "ium" are usually metals, and they're as common as wrinkles on a raisin. But if we're talking about elements with atomic numbers less than 101, then there are 8 elements with names ending in "ium." So, to answer your question, there are 8 elements under atomic number 101 that have names ending with "ium."
What element has an atomic number lower than that of aluminum less valence electron than the the group 16 elements?
Nitrogen
This element has an atomic number lower than that of aluminum and one less valence election than the group 16 elements?
The element with an atomic number lower than aluminum is silicon, which has an atomic number of 14. Group 16 elements, like oxygen and sulfur, have 6 valence electrons, whereas silicon has 4 valence electrons.
What are the four element that have atomic number less than 8?
There are seven elements with atomic number less than 8: hydrogen, helium, lithium, beryllium, boron, carbon, and nitrogen. I don't know where you got the notion that there were only four. I thought you might be thinking of atomic mass instead, but that doesn't work either ... there are only 3 elements that have stable isotopes with a mass below 8 amu (hydrogen, helium, and lithium). 7Be exists, but it's radioactive.
How Henry Moseley rearranged the periodic table?
Henry Moseley did a series of experiments looking at the x-ray spectra of various elements. He found that the frequencies of equivalent bands made a very simple progression that more or less corresponded to atomic weight order. The exceptions were exactly the same as the ones where Mendeleev's scheme was having difficulties. He thus arrived at a definition of atomic number, and proposed a revised periodic law where the ordering of elements was according to atomic number rather than atomic weight.
