What are the 3 chemical properties?
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What are the 3 chemical properties?
A chemical property is a characteristic of a particular substance that can be observed in a chemical reaction. Some major chemical properties include flammability, toxicity, heat of combustion, pH value, rate of radioactive decay, and chemical stability.
What are the 4 properties of an atom?
Typical sizes of atom and nucleus.
Do atoms contain chemical properties?
An atom is the smallest unit of matter that retains all of the chemical properties of an element. The first is the tiny atomic nucleus, which is in the center of the atom and contains positively charged particles called protons and neutral, uncharged, particles called neutrons.
What are 5 chemical properties matter?
Examples of chemical properties include flammability, toxicity, acidity, reactivity (many types), and heat of combustion. Iron, for example, combines with oxygen in the presence of water to form rust; chromium does not oxidize (Figure 2).
What are chemical and physical properties?
A physical property is a characteristic of a substance that can be observed or measured without changing the identity of the substance. Physical properties include color, density, hardness, and melting and boiling points. A chemical property describes the ability of a substance to undergo a specific chemical change.
What determines chemical activity of an atom?
Chemical activity of an atom. These valence electrons have the ability to participate in a chemical reactions. And the atom with 8 electrons in its valence shell is stable. to attain the stability the atom participate in chemical reactions by gaining electron, by loosing electrons or by sharing the electrons.
What are parts of atom determine its chemical properties?
The chemical properties of the atom are determined by the number of protons, in fact, by number and arrangement of electrons. The configuration of these electrons follows from the principles of quantum mechanics.
What is the chemical formula for an atom?
A molecule is a group of atoms that joined together by one or more covalent bonds. The above image represents a water molecule. The chemical formula for water is H2O. There are two hydrogen atoms that are joined to one oxygen atom.
What does chemical structure of an atom mean?
An atom is the defining structure of an element , which cannot be broken by any chemical means. A typical atom consists of a nucleus of positively-charged protons and electrically neutral neutrons with negatively-charged electrons orbiting this nucleus.