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The M shell corresponds to n = 3. Therefore, the sub-shells in the M shell are: 3s 3p 3d Related Questions: Why is an atom electrically neutral? How many sub-shells are there in the N shell? Distinguish between shell and sub-shell. What is the role of analytical chemistry in forensic science? Give two examples of … Read more
In the N shell, where n = 4, there are four sub-shells: 4s, 4p, 4d, and 4f. The number of sub-shells in any shell corresponds to the principal quantum number n. Related Questions: List the sub-shells of the M shell in order of increasing energy. Why is an atom electrically neutral? Give notation for sub-shells … Read more
An atom is electrically neutral because the number of positively charged protons in the nucleus is equal to the number of negatively charged electrons surrounding the nucleus. The positive charge of protons is balanced by the negative charge of electrons, resulting in no net charge. Related Questions: How many sub-shells are there in the N … Read more
Shell: A shell refers to a group of atomic orbitals with the same principal quantum number, denoted by the letter n (e.g., K shell, L shell, M shell). It represents a specific energy level in an atom where electrons are likely to be found. Each shell can hold a specific number of electrons and is … Read more
Gases do not have a definite shape or volume because their molecules are widely spaced and move freely. This allows them to expand and fill any container they are in, adjusting to both shape and volume. Related Questions: Can you write the formula of the carbon dioxide gas that we exhale? Define element, compound, and … Read more
Generally, increasing temperature increases the solubility of solid solutes in liquids. For gases, higher temperatures tend to decrease solubility. This is because higher temperatures give molecules more energy to dissolve or escape from the solvent. Related Questions: Can you write the formula of the carbon dioxide gas that we exhale? Define element, compound, and mixture. … Read more
Sublimation is the transition of a substance directly from a solid to a gas without passing through the liquid phase. An example is dry ice (solid carbon dioxide), which sublimates directly into carbon dioxide gas at room temperature. Related Questions: Can you write the formula of the carbon dioxide gas that we exhale? Define element, … Read more
Physical properties are characteristics that can be observed or measured without changing the substance’s chemical identity, such as color, mass, and melting point. Chemical properties, on the other hand, describe how a substance reacts with other substances, forming new products, like flammability or acidity. Related Questions: Can you write the formula of the carbon dioxide … Read more
Solubility is the ability of a substance (solute) to dissolve in a solvent at a given temperature and pressure. It is the maximum amount of solute that can be dissolved in a specific amount of solvent, forming a solution. Solubility can be affected by: Temperature: For most solid solutes, solubility increases with temperature, while for … Read more
a. Colloids and Suspensions Aspect Colloids Suspensions Particle Size 1 nm to 1000 nm Larger than 1000 nm Visibility Cannot be seen by the naked eye. Can be seen by the naked eye. Stability Stable, particles do not settle. Unstable, particles eventually settle. Examples Milk, smoke, fog. Muddy water, sand in water. b. Elements and … Read more