Which pair of elements do you expect to be most similar? Why? a) N and Ni. b) Mo and Sn. c) Na and Mg. d) Cl and F. e) Si and P. Elements in the same group in the periodic table (a) have similar chemical proper
To determine which of the given pairs contains elements that are chemically dissimilar, we need to analyze the groups of the elements in each pair. Elements that belong to the same group in the periodic table typically exhibit similar chemical properties, while those from different groups tend to...
A new radiochemical method for the determination of two chemically similar elements by the method of concentration dependentdistribution is proposed. The method involves the measurement of the distribution ratio of the labelled substance added tothe unknown sample in two different "substoichiometric" ...
The theory of the errors involved in the method is elaborated,recommendations are given for the choice of the conditions of the determination, e.g. which combination of extractant andmasking reagent is preferable, which of the two elements should be labelled, what is the optimum concentration of...
Answer to: The most common group of minerals are in the (a) ___ group. This is not surprising since the two elements most common in the...
elements that are combined chemically • Properties of compounds may not be the same as properties of elements that make them up Compounds • Substances composed of 2 or more elements that have been chemically combined • Glass • Sugar • Water • Salt compounds in re...
Although similar in mass, protons and neutrons differ in their electric charge. A proton is positively charged whereas a neutron is uncharged. Therefore, the number of neutrons in an atom contributes significantly to its mass, but not to its charge. Electrons are much smaller in mass than ...
• Elements are pure substances, which consist of only a single type of atom. In a compound, two or more elements are chemically bound together. • In a compound, elements are present in defined ratio. • The properties of an element often change completely when they are part of a ...
Which of the following pairs of elements will be most similar in their chemical properties? Explain. (a) K and Li (b) Na and Ca (c) O and F (d) Ni and Cu. Elements: Elements are pure substances composed of only...
Which one is the most reactive of all elements?What do the members of the noble gas family have in common? a. They are mostly chemically inert. b. They almost never react with other elements. c. They have filled outer electron configurations...