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If "element 5" in this question means the element with atomic number 5, then all of the elements with atomic numbers 1 through 4 have smaller atomic masses. These elements are hydrogen, helium, lithium, and beryllium.
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What element has an atomic mass greater than 75 but less than 79?
Element 34, Selenium, has an atomic mass of about 78.96.
Which atomic mass is smaller cobalt or lead?
Cobalt (Co) has a smaller atomic mass than Lead (Pb). Cobalt's atomic mass is only 58.9332 while lead's is 207.2.
What element has a gram atomic mass that is greater than the gram atomic mass of the element with an atomic number higher by one unit?
Both argon and cobalt have this characteristic.
What element can have the atomic number 118 and also the mass number 50?
No element can have those features; the mass can never be less than the atomic number in any element.
Is boron atomicly bigger or smaller than Oxygen?
Boron has a larger atomic radius but a smaller atomic mass.
How can the atomic mass of the element be lower than the element that came before it?
Because the periodic table is organized by atomic number, not by atomic mass. The general trend in the periodic table is a higher atomic mass as you go up atomic number, but there are exceptions.
Why don't we use the mass of the electron to get the atomic mass of an element?
The number of electrons are variable for an element because electrons can be lost or gained. Additionally, the mass of an electron is so much smaller than the mass of neutrons and protons that it can be considered negligible for most purposes.
What is smaller than the atomic radius of beryllium (Be)?
Generally, any element with a lower atomic number.
Distinguish between the atomic number and mass number of an element?
The atomic number of an element is the number of protons in the nucleus of each atom of the element. Mass number is a property of a particular isotope of the element rather than of the element itself: The mass number is the sum of the numbers of protons and neutrons in the nucleus of each atom of the isotope.
Why does helium with atomic mass 4 have a smaller deflection than that of hydrogen with atomic mass 1?
When you convert the helium with a positive ion ratio the atomic mass 1 of hydrogen is inflated at the inverse of mass 4, giving it the mass of 3 which deflects in a the smaller since of the word.
Why atomic mass is always greater than atomic number?
Atomic number indicates the number of protons in the nucleus of a given element, whereas atomic mass results from protons and neutrons.
What is the first element with an atomic mass greater than 100?
Unnilunium
