Final answer:
Tungsten belongs to the d-block of the periodic table, which is designated for transition metals and falls between Groups III and XII. The d-block elements have their outermost electrons in d orbitals.
Step-by-step explanation:
Tungsten is an element that falls under the d-block category of the periodic table. Each block on the periodic table correlates with the type of atomic orbital that is being filled by electrons for elements in that block. For tungsten, which is located between Groups III and XII, its outermost electrons are filling the d orbitals. Therefore, for the question about what block tungsten falls into, the correct answer is:
C) d-block
The d-block contains all transition metals, which display typical metallic properties and form a bridge between the more reactive metals of the s-block and the less reactive elements of the p-block and f-block. Tungsten is well known for its high melting point and strength, typical characteristics of transition metals.