Silane, SiH., is a colorless, pyrophoric, toxic gas that is used to deposit elemental silicon for semiconductor and photovoltaic applications. Given the electron configuration of Si is [Ne]3s 3p², how many valence electrons does Si have? 4 7 +/- 2 5 8 Mil 3 6 9 0 X C x 100

Atomic radius is usually inferred from crystallographic data on elemental solids and is a crude measure of the size of the electron cloud around the nucleus. The data below are atomic radii for the elements in the second row of the Periodic Table. Explain the trend.   Li : 0.152 nm Be: 0.113 nm B: 0.088 nm C: 0.077 nm N: 0.075 nm O: 0.066 nm F: 0.058 nm

what is the elemental form of fluorine? F(g) F- (aq) F+(g) or none of the these?

ELECTRONIC STRUCTURE AND CHEMICAL BONDING Identifying elements with a similar valence electron configuration In the Periodic Table below, shade all the elements for which the neutral atom has a valence electron configuration of ns'np, where stands for an integer. He B CNOF Ne Al Si P S Cl Ar Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn H Li Be Na Mg K Ca Sc Rb Sr Y Cs Ba La Fr Ra Ac Rf Db Sg Bh Hs Mt Ds Rg Cn 0/3 X

What do the electron structures of the alkali metals have in common? The outermost energy level contains two electrons in an S ✓orbital.

Which of the following elements would you expect to have positive electron affinity? Ne Br Cl F O

Which of the following groups of elements are not all metals? O AI, Zn, As Bi, W, Mo Ba, Sr, Pb Ag, Au, Zn

Does any element with Z ≤ 92 match the description? A main group element  on period 4.

Which of the following elements has the smallest atomic radius? carbon lithium boron oxygen

An element has the following electron configuration, [Ar]3d104s²4p3. This element is a _-- O transition metal O metal noble gas nonmetal O metalloid