Problem-Solving Lab: Francium--Solid, Liquid, or gas?

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Problem-Solving Lab: Francium--Solid, Liquid, or gas? Of the first 101 elements, francium is the least stable. Its most stable isotope has a half-life of just 22 minutes! Use knowledge about the properties of other alkali metals to predict some of francium’s properties. 1. Using the periodic law as a guide, graph the trends for each of the properties given in the following table. 2. Predict whether francium is a solid, liquid, or gas at room temperature.

Element Melting Point (oC) Boiling Point (oC) Radius (pm) lithium 180.5 1346 152 sodium 97.8 897 186 potassium 63.3 766 227 rubidium 39.31 688 248 cesium 28.4 647.8 265 francium ?

Question Set 1. Explain why elements in the same group on the periodic table have similar chemical properties. 2. Given each of the following valence electron configurations, determine which block of the periodic table the element is in. a. s2p4 b. s1 c. s2d1 d. s2p1 3. Without using the periodic table, determine the group, period, and block of an atom with the electron configuration of [Ne]3s23p4. 4. Make a simplified sketch of the periodic table and label the s, p, d, and f blocks.