No. The atomic number of an element never changes. It is the number of protons and it defines the element. In certain types of radioactive decay, the number of protons can change, but then it is no longer the same (parent) element, but rather is a new (daughter) element.
The periodic table has evolved over time as new elements have been discovered and our understanding of atomic structure has improved. Elements have been reorganized based on their atomic number instead of atomic weight, and new elements have been added as they were synthesized in laboratories. The table has also been expanded to include more information about each element, such as atomic structure and properties.
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Last time I checked, oxygen's atomic number was 8.
No, passport numbers do not change over time. Once a passport is issued, the number remains the same for the duration of its validity.
Protons = Atomic Number Electrons = Atomic Number Neutrons = Atomic Mass - Atomic Number *A note on Atomic Mass* Atomic Mass is the sum of the number of protons and neutrons in an atom. Every time you remove or add a Proton/Electron or a Neutron, you change the mass by one. *A note on Protons and Electrons* The number of Protons and Electrons in an atom is always the same. Whenever you talk about adding/removing a proton or an electron, you are by default adding/removing one of the other as well.
The element with the highest atomic number is Ununoctium (total quantity that has ever existed: three atoms), and its atomic number is 118. Thulium has an atomic weight of 168.9342.
Because different tools were made over time and atoms were not studied as well as they should have been. Scientists would look at an atom and notice something different about it everyday.
How did the dirction of the moon change over time? How did the dirction of the moon change over time?
Atomic clocks do not automatically adjust for daylight savings time. You may need to manually change the time on the clock to account for the time change. Some atomic clocks have a setting that allows you to switch between daylight savings time and standard time. Check the user manual for instructions on how to make this adjustment.
A change over time is often referred to as a gradual change.
evolution of man/women
what caused the cell phone to change over time is the tecnoligy