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The correct answer is option D, which states that the ionization energies are the highest. In the periodic table, group 2A is where you’ll find the atoms that make up the alkaline earth group. The valence electrons are closer to the nucleus when the valence electrons of the atom are smaller and therefore higher in the group.
Which element in the group of alkaline earth metals has the smallest atomic size?
Basic properties are exhibited by the alkaline-earth metals’ oxides. By moving from beryllium, the least electropositive member of the group, to radium, the most electropositive member, there is seen to be a reasonably consistent increase in the electropositive character.
Which metal included in the alkaline earth group has the greatest atomic radius?
Barium, denoted by the symbol Ba, is the alkaline earth metal that belongs to Group 2 and has the highest atomic radius, which is equal to 222 pm.
What kind of force of attraction do group 1 metals have for the electrons that make up their valence shells?
There is not much of a bond between the valence electrons of group 1 alkali metals and themselves.
Is there a progressive increase in atomic size down each group?
In general, the radius of an atom gets smaller as one moves across a period and gets bigger as one moves down a group… Because the number of energy levels, denoted by the letter n, rises as one moves down a group, the distance between the nucleus and the orbital furthest from it also increases. The atomic radius ends up being greater as a consequence of this.
Part 1 of the S21_CHEM_102_Chapter 8 Highlighted Topics
28 related questions found
Which of the alkaline earth metals has the highest hardness?
According to the preceding explanation, the metal with the highest hardness among the alkaline earths is beryllium.
Which element has the greatest radius of its atomic particles?
Atomic radii shift in a way that can be predicted as one moves down the periodic table. As can be seen in the graphics that follow, the atomic radius expands from left to right across a group but contracts from top to bottom within a group. This pattern repeats itself over periods. Hence, helium is the most fundamental element, although francium is the most massive.
Which member of the alkali family has the greatest atomic radius of all the elements?
The straightforward extrapolation of the trend in the atomic radius for the alkali metals shown in the graph on the left indicates that francium is most likely one of the candidates for the title of largest atom. On the other hand, because it belongs to the period 7 group of elements, francium is affected by a phenomenon known as the “lanthanide contraction.”
Which characteristic of the metals of the alkaline earth will become more pronounced as the atomic number increases?
Hence, an increase in the atomic number of alkaline earth metals results in an increase in the solubility of alkaline earth metal hydroxides. Moving downhill in a group with an increase in atomic number typically results in a reduction in both the electronegativity and the ionization energy of the substance.
Why are the metals of Group 2 referred to as alkaline earth metals?
The name originates from the observation that the oxides of these metals, when dissolved in water, generated basic solutions; yet, at the temperatures that were attainable to ancient alchemists, these solutions remained solid. In the same way as the Group 1A elements, the elemental forms of the alkaline earth metals cannot be found in nature because of their high reactivity.
Is potassium a type of metal found in alkaline earth?
The elements beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium make up the group of elements known as the alkali metals. The alkaline earth metals dissolve easily in water and create oxides when they are exposed to the elements of the earth. Because of this, they are referred to by these names. Potassium is not an alkaline earth metal; rather, it is classified as an alkali metal.
Which element has the atomic radius that is the smallest?
The atomic radius of helium is the lowest of all the elements. This is because of patterns in the periodic table, as well as the effective nuclear charge, which draws the valence electrons closer to the nucleus and keeps them there.
Which of the elements in Group 2 has the quality of being the most metallic?
Radium is the element in group 2 that is known to have the most metallic character, and as a result, it is the group 2 element that can be considered to be the element that is the most metallic. This is due to the fact that the metallic nature of elements increases as one travels down a group of the periodic table, and radium is located near the bottom of group 2 in the current version of the table.
Which metal found in the alkaline earth series has the highest ionization energy?
The IE for lithium will be the highest in the group, while the IE for the other elements will fall.
Which of the alkali metals is the most abundant?
In the group of alkali metals, cesium has the biggest atom.
Which of the elements that belong to the second period has the greatest atomic radius?
In the second period of the modern periodic table, the element with the biggest atomic radius is lithium (Li), which is represented by the symbol Li.
Which element has the greatest amount of mass per atom?
Oganesson is the element with the greatest atomic number and the highest atomic mass of any element that is currently known. Since 2005, only five (perhaps six) atoms of the isotope oganesson-294 have been found. This is due to the fact that the radioactive oganesson atom is extremely unstable.
Which one of these is not an example of an alkaline earth metal?
The answer that you are looking for is sodium. Sodium is not a metal that belongs to the alkaline earth group.
Which one of the following does not fall under the category of an authentic alkaline earth metal?
Group 2 is comprised of the elements beryllium, magnesium, calcium, and strontium in addition to barium, and radium. With the exception of beryllium, the elements in this group are typically referred to as the alkaline earth metals.
Why are metals from the alkaline earth group reactive?
Alkaline earth metals are the name given to the elements that can be found in group 2 of the periodic chart. These can appear white or gray depending on the light… The reason alkaline earth metals are so reactive is because they rapidly give up their two valence electrons in order to acquire a full outer energy level. This is the most stable arrangement of electrons, hence it is the most desirable state for the metal to be in.
Which of these halogens is the one that has the lowest probability of attracting an electron pair?
As a consequence, among all of the halogens, astatine possesses the lowest level of attraction for electrons.
Why is the size of a noble gas larger than that of a halogen?
Because vander Waal’s radii, which is found in noble gases, is significantly larger than ionic and covalent radii, noble gases have a relatively higher atomic size than equivalent halogens. This is due to the fact that ionic and covalent radii are much less than vander Waal’s radii.
What accounts for lithium’s status as the element with the biggest atomic radius?
Both lithium, denoted by the symbol Li, and beryllium, denoted by the symbol Be, can be found in group 1 and group 2 of the periodic table, respectively, in the period 2 position. In the 2s subshell of both of these elements, the energy level that contains the electrons furthest from the nucleus is the second one…. Because of this, the atomic radius of lithium is greater than that of beryllium.