Three elements, X, Y and Z have consecutive increasing proton numbers. If element Y is a noble gas, what will be the formula of the compound formed by X and Z?

The diagram below shows the arrangement of ions in a compound. Which is the simplest formula of this compound?

A bond in which two pairs of electrons are shared by a pair of atoms is called a ___

Which solid does not contain covalent bonds?

In Lewis structures, bonds are formed by pairs of valence electrons called ___

Two elements X and Y, have electronic configurations 1s22s22p63s2 and 1s22s22p63s23p5 respectively.Which statements describe the compound formed by X and Y?I : It is soluble in waterII : It has high melting and boiling pointsIII : It has a crystal lattice structure.IV : The elements can be recovered by using electricity.

Molecules are like groups of atoms hanging out close to each other because that's where their energy is ___

Which molecular model uses perfectly spherical atoms connected by clearly defined bonds?

For water, each hydrogen atom has one valence electron, and oxygen has ___

How many valence electrons does carbon have?

Which is a compound that has giant molecular structure?

The diagram below shows the bonding between P and Q in the covalent molecule, PQ2. What are the valence electrons of P and Q?

In scientific terms, anything that represents something else, whether it's physical or conceptual, is called a ___

Who developed a quantum mechanical model of chemical bonds and won a Nobel Prize for it in 1954?

In Lewis structures, pairs of electrons that are attached to only one atom are known as ___

In 1916, which American chemist described a covalent bond as two atoms sharing electrons?

In the 19th century, who discovered positive and negative charges associated with chemicals in certain situations?

In reality, the only thing connecting two atoms together in a chemical bond is a bunch of ___

Both calcium chloride and potassium chloride are ionic compounds.Which statements about these compounds are correct?

The bonding in sulfuric acid can be represented by the structural formula.What is the total number of electrons in the covalent bonds surrounding the sulfur atom?

Quantum mechanics basically involves the idea that some things, like light and electrons, are both ___

When drawing the Lewis structure for carbon dioxide, all three of the atoms need ___

Sodium has one valence electron and chlorine has ___

The Lewis structure for sodium chloride doesn't include a line because ___

In Lewis's model each bond requires ___

Early scientists, including Isaac Newton, thought that atoms combined because they were ___

Solid iron metal, aqueous zinc sulfate, solid graphite and molten magnesium oxide will all conduct electricity.Which pair will conduct electricity because they contain mobile ions?

In a covalent bond, where do the bonding electrons spend most of their time?

Some elements are able to form compounds by either sharing or the transferring of electrons.Which element is not able to form compounds in this manner?

Which statement gives the most accurate description of metallic bonding?