Reactivity Trends on the Periodic Table

In a group the atomic size increases due to the addition of shells as we move from one period to another. Dmitri Mendeleev published the first periodic table in 1869.

Comparing Halogen Reactivity Trends With Those Of The Alkali Metals Halogens Become Less Reactive Down The Chemistry Classroom High School Chemistry Chemistry

They should know the definition of an element and be able to identify metals and non-metals using the periodic table.

. Learners should be familiar with the periodic table of elements. What causes this trend. He showed that when the elements were ordered according to atomic weight a pattern resulted where similar properties for elements recurred periodicallyBased on the work of physicist Henry Moseley the periodic table was reorganized on the basis of increasing atomic number rather than on atomic weight.

Periodic Trends ATOMIC RADIUS 1. What trend in atomic radius do you see as you go down a groupfamily on the periodic table. The following trend in periodic properties of elements is observed.

What causes this trend. What trend in atomic radius do you see as you go across a periodrow on the periodic table. The distance between the centre of the nucleus and the outermost shell of an atom is known as the atomic radius.

Learners may have experience of investigating the relative reactivity of some metals at 1114 using a simplified method such as counting bubbles in a test tube. Circle the atom in each pair that has the largest atomic radius.

Which Is The Most Reactive Element In The Periodic Table Science Abc Periodic Table Chemical Bond Science

Periodic Table Reactivity 8th Grade Physical Science Geometry Worksheets 10th Grade Math Worksheets Chemistry Worksheets

Periodic Table Reactivity 8th Grade Physical Science Geometry Worksheets 10th Grade Math Worksheets Chemistry Worksheets