Exam 14: Periodic Patterns in the Main Group Elements: Bonding, Structure, and Reactivity

According to the phase diagram of carbon, what pressure and temperature conditions, if any, are needed in order for diamond to be the stable phase?

What is the highest oxidation state of chlorine in any of its compounds?

Which of the following hydroxides will be the most basic?

Which of the following statements about the effective nuclear charge, Z_eff, is correct?

Which element forms compounds which are used to treat individuals suffering from manic-depressive disorders?

Silicon halides have stronger bonds than corresponding carbon halides. Which of the following is a possible explanation of this phenomenon?

Oxides of group 1A (1) and 2A (2) elements are strongly acidic.

Xenon forms several compounds with oxygen and fluorine. It is the most reactive non-radioactive noble gas because

Predict the products for the following set of reactants. Li(s) + CH₃Cl(g) 

Predict the products for the following set of reactants. H₂O(l) + ClF₅(l) 

Sodium tripolyphosphate is useful

The elements from Groups 1A(1) and 2A(2) are

Which of the following has the most allotropes?

Predict the products for the following set of reactants. Ca₃As₂(s) + H₂O(l) 

Which of the alkali metals has the highest melting point?

Which of the following elements exists in allotropic forms?

Which of the following oxides will give the most acidic solution when dissolved in water?

Name the three different classes (types) of hydride, and list some of their important characteristics.

Write balanced equations, showing all reactants and products, to represent a. roasting of limestone (CaCO₃) to give lime. b. tetraphosphorus decaoxide (P₄O₁₀) reacting with water to produce phosphoric acid.

Unlike the remainder of the Group 1A(1) elements, lithium forms many salts that have some covalent bond character. What is a reason for this behavior?