Anonymous. 1 decade ago. Recognizing Ionic Compounds. In the ionic bond formation between calcium and sulfur, a calcium atom donates two valence electrons to a sulfur atom to form a "Ca"^"2+" ion and an "S"^"2+"⁻ ion. Calcium Sulfur Compound. It can achieve a noble gas configuration by gaining two electrons. To determine this you … Therefore, it is most likely an ionic compound. First, compounds between metal and nonmetal elements are usually ionic. It can achieve a noble gas configuration by losing these two electrons. Binary ionic compounds are named by removing the end of the name from the nonmetal and adding -ide. W. Wardencki, in Reference Module in Chemistry, Molecular Sciences and Chemical Engineering, 2014. Formula writing . Calcium. When Calcium reacts with sulfur the compound formed is. The primary function of calcium in plant growth is to provide structural support to cell walls. 0 0. This category has … Compounds containing one or more of these nutrients are often used as soil amendments rather than strictly as suppliers of plant nutrition. Calcium and sulfur form Calcium Sulfide. This activity includes every compound formula and name that can be formed from the list 44 Ions provided in Chemistry A at Pickerington High School Central. There are two ways to recognize ionic compounds. (From Quora) A sulfur atom has six valence electrons. Which best describes this ionic compound? Copper, for example, usually forms +1 or +2 charged ions. For chemical compounds containing calcium.For an alternative listing please see inorganic_compounds_by_element#Calcium.. Subcategories. Compounds containing one or more of these nutrients are often used as soil amendments rather than strictly as suppliers of plant nutrition. A Ca atom has two valence electrons. Source(s): https://shrinkurl.im/a0evp. For example, CaBr 2 contains a metallic element (calcium, a group 2 (or 2A) metal) and a nonmetallic element (bromine, a group 17 (or 7A) nonmetal). Introduction. (From Quora) A sulfur atom has six valence electrons. To write the correct formula you must know the charges present on each ion. https://www.khanacademy.org/.../v/formula-for-ionic-compounds Calcium and magnesium both increase soil pH, but sulfur from some sources reduces soil pH.