Question

while developing the periodic table, dmitri mendeleev left spaces for undiscovered elements, such as iodine, atomic number 53. considering its position on the periodic table, predict the properties iodine (i) is most likely to exhibit. properties of iodine melting point: flexibility: electrical conductivity: chemical properties most similar to:

Explanation:

Step1: Identify iodine's group

Iodine is in group 17 (halogens). Halogens are non - metals.

Step2: Analyze melting point

Non - metals generally have relatively low melting points compared to metals. Iodine has a melting point of 113.7 °C. So it has a low melting point.

Step3: Analyze flexibility

Non - metals are brittle and not flexible. Iodine is brittle.

Step4: Analyze electrical conductivity

Non - metals are poor conductors of electricity. Iodine is a poor electrical conductor.

Step5: Analyze chemical similarity

Elements in the same group have similar chemical properties. Iodine is in group 17, so it has chemical properties similar to other halogens like chlorine (Cl), bromine (Br).

Answer:

Melting point: Low
Flexibility: Brittle (not flexible)
Electrical conductivity: Poor
Chemical properties most similar to: Chlorine, Bromine