The diagram shows a snail. The snail shell contains a natural ionic compound. other than oxygen, what elements are contained in the ionic compound?

Which substance is an ionic compound?

Which compound is formed by transferring electrons?

The diagram shows the electron arrangement of X²⁺ ion. Which of the following is the position of element X in the Periodic Table of ELements?

Element M and element L are located in Group 1 and Group 16 in the Periodic Table respectively. Element M reacts with element L to form a compound. What is the chemical formula of the compound?

The electron arrangement of an atom M is 2.8.1 and the electron arrangement of an atom X is 2.6. Elements M and X react to form a compound. Which of the following is true about the reaction?

An atom of element X has 4 shells containing electrons. When element X reacts with chlorine, a compound with formula Xcl is formed. Which of the following is element X?

[proton number : Na=11, Si=14, K=19, Ca=20]

Which statement is true about the reaction of a magnesium atom with fluorine to form magnesium fluoride? [Proton number: F=9, Mg=24]

Element G reacts with element Lto form a covalent compound with the formation GL₂. The electron arrangement of an atom of L is 2.8.7. Which of the following is a possible electron arrangement of an atom of G?

The diagram shows the electron arrangement of the Q^- ion. What is the number of valence electrons of a Q atom?

Thiosulphate ion, S₂O₃^2- reacts with an element M in Group 1 to form a compound. M is not the actual symbol of the element. What is the formula of the compound?

Thiosulphate ion, S₂O₃^2- reacts with an element M in Group 1 to form a compound. M is not the actual symbol of the element. What is the formula of the compound?

The diagram shows the symbols for four different elements. The letters J, L, M and Q are not the actual symbols of the elements.

Which is the correct formula and type of bond when two of the elements react?

The electron arrangement of atom U is 2.8.1 and atom V is 2.8.7. What is the molar mass of a compound formed when atom U combines with atom V? [RAM U=23, V=35.5]

The table shows the proton number and the nucleon umber of atoms of elements X and Y. X and Y are not the actual symbol of the elements. ELement X reacts with element Y to form a compound. What is the molar mass of the compound?

Which of the following represents the electron arrangement for the compound sodium chloride, NaCl?

Element X and carbon combine to form compound CX₄. Element X and calcium combine to form CaX₂. The letter X is not the actual symbol of the element. Which of the following represents the electron arrangement for the compound formed between magnesium and element X?

The diagram shows the electron arrangement of a compound formed between atom W and atom Y. Atom Y also forms a compound with atom Z. Which of the following is the electron arrangement of the compound formed? [Proton number of Z = 11]

The ionic formulae of elements X and Y are as follows :

X³⁺ Y^2-

^{The compound formed from the reaction of the ions of the elements X and Y has the formula X2Y3. Which of the following ionic equations represents the reaction?}

What is the meaning of a covalent bond?

Butane in cooking gas burns to release carbon dioxide. Both butane and carbon dioxide are..