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The LIHTC provides funding for the development costs of low-income housing by allowing an investor (usually the partners of a partnership that owns the housing) to take a federal tax credit equal to a percentage (either 4% or 9%, for 10 years, depending on the credit type) of the cost incurred for development of the low-income units in a rental housing project.
This list of chemical elements named after places includes elements named both directly and indirectly for places. 41 of the 118 chemical elements have names associated with, or specifically named for, places around the world or among astronomical objects.
In chemistry and atomic physics, the main group is the group of elements (sometimes called the representative elements) whose lightest members are represented by helium, lithium, beryllium, boron, carbon, nitrogen, oxygen, and fluorine as arranged in the periodic table of the elements. The main group includes the elements (except hydrogen ...
Architectural and urban design elements can enable or inhibit a feeling of social cohesion, and so carefully choosing design elements that match the goals of mixed income development are key. Some of these may include placing higher income and lower income units adjacent to each other; ensuring that all units have the same features, amenities ...
118 chemical elements have been identified and named officially by IUPAC.A chemical element, often simply called an element, is a type of atom which has a specific number of protons in its atomic nucleus (i.e., a specific atomic number, or Z).
The Roman numerals used correspond to the last digit of today's naming convention (e.g. the group 4 elements were group IVB, and the group 14 elements were group IVA). In Europe, the lettering was similar, except that "A" was used for groups 1 through 7, and "B" was used for groups 11 through 17. In addition, groups 8, 9 and 10 used to be ...
In the periodic table of the elements, each column is a group. In chemistry, a group (also known as a family) [1] is a column of elements in the periodic table of the chemical elements. There are 18 numbered groups in the periodic table; the 14 f-block columns, between groups 2 and 3, are not numbered.
Lithium forms a variety of binary and ternary materials by direct reaction with the main group elements. These Zintl phases, although highly covalent, can be viewed as salts of polyatomic anions such as Si 4 4-, P 7 3-, and Te 5 2-. With graphite, lithium forms a variety of intercalation compounds. [100]