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Lithium, the very first element in team 1, has actually an atomic number of 3. The 2nd element in this team has one atomic number of ___.
An isotope the fluorine has actually a mass variety of 19 and also an atomic number of 9. How many protons room in this atom?
An isotope that fluorine has a mass number of 19 and also an atomic variety of 9. How many neutrons space in this atom?
An isotope that fluorine has a mass variety of 19 and an atomic variety of 9. What is the atom symbol the this fluorine atom, consisting of its massive number and the atomic number?
In a contemporary periodic table, every aspect is a member the both a horizontal row and a upright column. I m sorry one is the group, and also which one is the period?
The atomic variety of an aspect refers come the number of protons in the nucleus of the atom. The atomic mass is the variety of protons and neutrons within the nucleus of one atom (the weighted typical of the mass of the neutral atom that the element)
From left come right across a period on the periodic table, electron affinity values often tend to become an ext ___.
the radius of a positive in is smaller than the radius of a neutral atom. Acquisition an electron indigenous a neutral atom to make it a confident ion will make the radius smaller.
The radius that a an unfavorable ion is bigger than the radius of a neutral atom. Adding an electron to a neutral atom to do a an unfavorable ion will certainly make the radius larger.
Explain why the 2nd ionization power is higher than the first, the 3rd is higher than the second, and also so on.
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The electrons in the an initial energy level space closer come the atom"s nucleus 보다 electrons in the 3rd energy level. Electrons closer come the nucleus space harder come be removed whereas electrons more away native the cell nucleus are straightforward to it is in removed; therefore the third ionization energy is greater than the second and 1st
Valence electrons organize atoms together in chemical compounds. The an unfavorable charge the the valence electron is focused closer to one atom 보다 to another and also has an impact on the chemical properties that the compound. They are the electrons the are supplied in the formation of chemical compounds.
Is the element"s position in a modern periodic table identified by its atom number or by its atom mass?
An facet with a large negative electron affinity is most most likely to form a (positive ion, an unfavorable ion, or neutral atom)?
Identify all of the adhering to ions that perform not have actually noble-gas stability: K+, S^2-, Ca+, I-, al^3+, Zn^2+