Properties And Structures Of Matter

The correct answer is "a particle that contains more than one atom joined together." A molecule is a fundamental unit of a chemical compound that consists of two or more atoms bonded together. This definition accurately describes the nature of a molecule as a particle formed by the combination of atoms.

The given correct answer states that solid, liquid, and gas are called the states of matter. This is because matter exists in different forms, and these three are the most common states in which matter can exist. Solid refers to a state where particles are tightly packed and have a fixed shape, liquid refers to a state where particles are close together but can move freely, and gas refers to a state where particles are far apart and move freely. These states of matter are fundamental concepts in chemistry and physics.

In this case, the answer is B because we are taking a quiz on science, and volume takes up space.

The temperature at which a solid changes into a liquid is called the melting point.

A compound is a chemical combination of two or more elements into a single substance. When elements chemically react with each other, they form compounds with unique properties and characteristics. Compounds are made up of atoms of different elements that are bonded together in specific ratios. These bonds can be either ionic or covalent, depending on the nature of the elements involved. Compounds have a fixed composition and can be represented by a chemical formula.

The boiling point is the particular temperature for each substance at which it changes state from a liquid to a gas.

The dense center of an atom where most of its mass is located is called the nucleus. The nucleus contains protons and neutrons, which are the particles that make up the majority of an atom's mass. The neutrons have no charge, while the protons have a positive charge. The nucleus is surrounded by a cloud of electrons, which have a negative charge, and they orbit around the nucleus in specific energy levels. The nucleus is crucial for the stability and overall structure of an atom.

An atom is the smallest unit of an element that retains the same properties of that element. Atoms are composed of protons, neutrons, and electrons. They are the building blocks of matter and cannot be broken down further without losing the characteristic properties of the element. Compounds are formed when atoms of different elements combine, while molecules are made up of two or more atoms bonded together. An ant is a living organism and not related to the properties of elements.

The temperature at which a substance changes from a liquid to a solid is called the freezing point. This is the temperature at which the substance loses enough heat energy to solidify and form a solid state.

An element is a pure substance that cannot be broken down into any simpler substance. This means that it consists of only one type of atom and cannot be further divided or separated into other substances. Elements are the building blocks of matter and are represented by symbols on the periodic table. They can combine with other elements to form compounds, but they themselves cannot be broken down into simpler substances.

The uncharged particle in the nucleus of an atom is the neutron. Unlike protons and electrons, which carry positive and negative charges respectively, neutrons have no charge. They are responsible for adding mass to the nucleus without contributing to the overall charge of the atom. Neutrons play a crucial role in determining the stability and properties of an atom, such as its nuclear reactions and isotopes.

Density is the measure of how tightly packed an object is. It is a physical property that describes the amount of mass per unit volume of a substance. The higher the density, the more mass is packed into a given volume, indicating a higher degree of compactness. Density is commonly used to compare the heaviness of different materials or substances and is calculated by dividing the mass of an object by its volume.