That would be iodine with an atomic number of 53. The next group 17 element is astatine with atomic number 85.
Any one element can ONLY have a single fixed number of protons. Th only element with a number of protons that sits between 50 and 75 in group 17 of the periodic table is Iodine (I), with 53 protons.
A metal group 13 element would be less reactive than an element in the Mg group 17. This is because elements in group 13 have three valence electrons, making them less likely to readily lose or gain electrons compared to Mg group 17 elements, which have seven valence electrons. Mg group 17 elements are more reactive due to their greater tendency to gain one electron to achieve a stable electron configuration.
It would be less reactive because the effective nuclear charge of the alkali-metals is lower than that of group 13. The result is that the valence electron is easier to attract/ionize to form bonds.
When a ring is activated in a chemical reaction, it becomes more reactive and can attract a particular element or group to substitute another element or group within the ring. This substitution occurs due to the increased reactivity of the activated ring, allowing for the desired element or group to replace the existing one.
Elements are more reactive as you go down the periodic table and to the left.
Sodium is less active than magnesium. Magnesium is located higher in the reactivity series of metals than sodium, indicating that magnesium is more reactive and likely to form compounds with other elements compared to sodium.
Any one element can ONLY have a single fixed number of protons. Th only element with a number of protons that sits between 50 and 75 in group 17 of the periodic table is Iodine (I), with 53 protons.
A metal group 13 element would be less reactive than an element in the Mg group 17. This is because elements in group 13 have three valence electrons, making them less likely to readily lose or gain electrons compared to Mg group 17 elements, which have seven valence electrons. Mg group 17 elements are more reactive due to their greater tendency to gain one electron to achieve a stable electron configuration.
The element you are looking for is iodine (I). It has 53 protons and is located in group 17 of the periodic table, which is known as the halogens. Iodine is commonly used in antiseptics and as a dietary supplement for thyroid health.
Less.
isotope
This chemical element is calcium (Ca).
I would expect cesium, element 55, to be more reactive than potassium. This is because cesium is further down the alkali metal group in the periodic table, making it more eager to lose an electron compared to potassium.
It would be less reactive because the effective nuclear charge of the alkali-metals is lower than that of group 13. The result is that the valence electron is easier to attract/ionize to form bonds.
Group 1 will be more reactive than group 13 elements
less reactive.beacuse group-1 elements are the most reactive elements.
an element becomes more metallic as you travel down a group. it becomes less metallic as you travel from left to right across a period.