University:
Campbell University
Course:
CHEM 111 | General Chemistry I
Academic year:

2020
Views:

427

Pages:

1
Author:

ViatDithDuada3f2

KEY The Periodic Table 1.) Predict the properties of the unknown element using the properties of its neighbours and whatever mathematical methods seem appropriate. If Mendel could do it, so can you! Si Al Atomic mass Density ( ) Density of oxide ( ) Formula of chloride Density of chloride ( ) Colour Lustre 27.1 2.70 3.97 AlCl3 2.44 Silvery white metallic 28.1 2.33 2.65 SiCl4 1.48 Grey metallic 31.0 1.82 2.14 PCl3 (l) , PCl5 (g) 1.57 (liquid) Pale yellow waxy 69.7 5.90 5.88 GaCl3 2.47 Silvery metallic Ge 72.6 5.35 4.23 GeCl4 1.84 Greyish white metallic As 74.9 5.73 3.87 AsCl3 2.16 Steel grey Dull metallic In 114.8 7.31 7.18 InCl3 3.46 Silvery white metallic Sn 118.6 7.28 6.95 SnCl2 , SnCl4 3.95, 2.23 Silvery white metallic Sb 121.8 6.69 5.67 SbCl3 , SbCl5 3.14, 2.34 Bluish-white metallic Ga Atomic mass Density ( ) Density of oxide ( ) Formula of chloride Density of chloride ( ) Colour Lustre Atomic mass Density ( ) Density of oxide ( ) Formula of chloride Density of chloride ( ) P Colour Lustre 2.) State the chemical family or group to which each of the following elements belongs. a.) radon Noble gas c.) iodine e.) calcium g.) zinc Halogen Alkaline earth Transition met d.) lithium f.) cesium h.) chlorine Alkali met Alkali met Halogen b.) iron Transition met 3.) Give the symbol for the two other elements in the same family as the following. a.) Na Li, K, Rb, Cs, Fr b.) Ar He, Ne, Kr, Xe, Rn c.) Mg Be, Ca, Sr, Ba, Ra d.) Br F, Cl, I, At 4.) Give the symbols for the two other elements in the same period as the following. a.) C Li, Be, B, N, O, Ne b.) S Na, Mg, Al, Si, P, S, Cl, Ar