Which one of the following pairs of elements would be expected to form an ionic compound? 1. s, f 2. as, br 3. rb, cl 4. c, i 5. h, c

Answer : The correct option is, (3) Rb, Cl

Explanation :

Ionic compound : It is a type of compound that is made up of the ions of the two different elements in which one element is a metal and another element is a non-metal.

Covalent compound : It is a type of compound that is made up of the ions of the two different elements in which both the elements are non-metal.

In option 1, sulfur (S) and fluorine (F) elements form covalent compound because sulfur and fluorine elements are non-metal.

In option 2, arsenic (As) and bromine (Br) elements form covalent compound because arsenic and bromine elements are non-metal.

In option 3, rubidium (Rb) and chlorine (Cl) elements form ionic compound because rubidium is metal and chlorine is non-metal.

In option 4, carbon (C) and iodide (I) elements form covalent compound because carbon and iodide elements are non-metal.

In option 5, hydrogen (H) and carbon (C) elements form covalent compound because hydrogen and carbon elements are non-metal.

Hence, the option 3 (Rb) and (Cl) form an ionic compound.

give brainliest

water pollution kills aquatic life. aquatic life includes algae and other plant life that use photosynthesis. photosynthesis takes   c02 out of the air.  

c02is a greenhouse gas.

electron microscopy and scanning tunneling microscopes gives us a greater understanding of atoms by being able to see the atom itself, and lets us see some atomic reactions.

explanation: