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Beryllium (Be) is the group 2 element with the smallest atomic radius. This is due to its higher nuclear charge relative to its size, which results in a stronger attraction between the nucleus and the electrons, pulling them closer. As you move down the group, atomic radii increase because additional electron shells are added, outweighing the increase in nuclear charge.
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Is neon the smallest radius in period 2?
yes! It is because Neon has the largest atomic mass so the force of attraction between electrons and protons in the positively charged nucleus is the highest compared to all the other electrons in period 2.
What is the largest nuclear charge of group 2?
The largest nuclear charge in Group 2 is found in the element radium (Ra) with an atomic number of 88. This means radium has 88 protons in its nucleus, which gives it the largest nuclear charge in Group 2.
Why atomic radius remains almost uncharged as you move through period 2 from group 14 to group 18?
The increase in nuclear charge as you move across period 2 from group 14 to group 18 is offset by a simultaneous increase in the number of electrons, resulting in the atomic radius remaining relatively constant. The additional electrons in each successive element are added to the same energy level (n=2 in period 2), which keeps the average distance of the outermost electrons from the nucleus consistent.
Can you describe the general trend in atomic radius in group 2A?
In the group 2 (IUPAC name) of the periodic table the atomic radius increase from beryllium to radium.
Why is the ionic radius of a group 2 elemnt smaller than its atomic radius?
The ionic radius of a Group 2 element is smaller than its atomic radius because, when these elements form cations (specifically, (M^{2+}) ions), they lose two electrons from their outermost shell. This loss of electrons results in a reduced electron-electron repulsion and allows the remaining electrons to be pulled closer to the nucleus, thus decreasing the size of the ion compared to the neutral atom. Additionally, the effective nuclear charge experienced by the remaining electrons increases, further contributing to the smaller ionic radius.
Do radium and radius have the same meaning?
Radium and radius do not mean the same thing. Radium is an element in group 2. It is radioactive and was discovered by the Curies. Radius is either the distance from the centre of a circle to its circumference, or a bone in the forearm.
Is neon the smallest radius in period 2?
yes! It is because Neon has the largest atomic mass so the force of attraction between electrons and protons in the positively charged nucleus is the highest compared to all the other electrons in period 2.
What element is located in group 15 and period 2?
The element phosphorous (P) is located in group 15, period 2.
Element M reacts with chlorine to for a compound MCl2 Element M is more reactive than magnesium and has a smaller radius than barium the element is?
Element M can be a choice of 4 elements, Beryllium, Magnesium, Calcium, or Strontium. The element must have an oxidation of +2, which means group 2 elements. The atomic radius of a barium atom is 222pm. Radium has a larger atomic radius that Barium, so that is eliminated, and Barium is the same as Barium so that is also eliminated.
What is the largest nuclear charge of group 2?
The largest nuclear charge in Group 2 is found in the element radium (Ra) with an atomic number of 88. This means radium has 88 protons in its nucleus, which gives it the largest nuclear charge in Group 2.
Why atomic radius remains almost uncharged as you move through period 2 from group 14 to group 18?
The increase in nuclear charge as you move across period 2 from group 14 to group 18 is offset by a simultaneous increase in the number of electrons, resulting in the atomic radius remaining relatively constant. The additional electrons in each successive element are added to the same energy level (n=2 in period 2), which keeps the average distance of the outermost electrons from the nucleus consistent.
What element is found in group 14 period 2?
what element is found between period 2 and group 14
What type of bond has a combination of a group 2 element with a group 17 element?
An ionic bond, where a group 2 element (such as calcium) donates electrons to a group 17 element (such as chlorine), forming ions with opposite charges that are attracted to each other.
What Element is in group 2 period 3?
The element in group 2 period 3 is magnesium (Mg).
Can you describe the general trend in atomic radius in group 2A?
In the group 2 (IUPAC name) of the periodic table the atomic radius increase from beryllium to radium.
Why is the ionic radius of a group 2 elemnt smaller than its atomic radius?
The ionic radius of a Group 2 element is smaller than its atomic radius because, when these elements form cations (specifically, (M^{2+}) ions), they lose two electrons from their outermost shell. This loss of electrons results in a reduced electron-electron repulsion and allows the remaining electrons to be pulled closer to the nucleus, thus decreasing the size of the ion compared to the neutral atom. Additionally, the effective nuclear charge experienced by the remaining electrons increases, further contributing to the smaller ionic radius.
How does the atomic radius change from top to bottom in a group 1 and 2 in the periodic table?
Going down and to the left on the periodic table, atomic radius increases. Therefore, the smallest atomic radius is that of Helium (He), and the largest is that of Francium (Fr). Coincidentally, these are also the most and least reactive elements.
