What is an element? What is a compound? When do students in Vietnam learn about elements and compounds according to Chemistry curriculum in Vietnam?

What is an element? What is a compound? When do students in Vietnam learn about elements and compounds according to Chemistry curriculum in Vietnam?

What is an element? What is a compound?

A element is one of the concepts in Chemistry.

Students can refer to foillowing information for a better understanding during their chemistry studies at school.

What is an element? What is a compound?

Element and Compound: Basic Concepts

Compound: A compound is a substance formed from two or more chemical elements, bonded together in a specific ratio, and having properties completely different from the elements that constitute it.

Element

Definition: An element is a substance composed of only a single chemical element.

Characteristics: Atoms in a element can bond together in various ways, forming molecules or crystal lattices.

Examples:

Metal: Gold (Au), silver (Ag), iron (Fe),...

Non-metal: Oxygen (O₂), hydrogen (H₂), sulfur (S),...

Noble Gases: Helium (He), neon (Ne), argon (Ar),...

Metallic elements:

Gold (Au): Gold is a precious metal, with a shiny gold color and is chemically inert. Gold is commonly used to make jewelry, coins, and decorative items.

Copper (Cu): Copper has a distinctive red color, good conductor of electricity and heat. Copper is widely used in the electrical, construction industries, and in household items production.

Iron (Fe): Iron is a gray metal, magnetic. Iron is used to produce steel, machinery, tools, and building structures.

Aluminum (Al): Aluminum is a light, silvery-white metal, good resistance to corrosion. Aluminum is widely used in the aerospace industry, packaging, and construction.

Oxygen (O₂): Oxygen is a colorless, odorless, tasteless gas, essential for life. Oxygen constitutes about 21% of the air volume.

Hydrogen (H₂): Hydrogen is the lightest gas, colorless, odorless. Hydrogen is used as fuel, in the production of ammonia, and in organic compounds.

Sulfur (S): Sulfur is a yellow solid, insoluble in water. Sulfur is used in the production of sulfuric acid, matches, and gunpowder.

Carbon (C): Carbon exists in various allotropic forms such as diamond, graphite, charcoal. Carbon is the fundamental element of organic compounds.

Noble Gas elements:

Helium (He): Helium is an inert, colorless, odorless gas, lighter than air. Helium is used in balloons, superconductive cooling, and medical equipment.

Neon (Ne): Neon is an inert, colorless, odorless gas. When an electric current passes through it, neon emits a red-orange light, used in neon lights.

Argon (Ar): Argon is an inert, colorless, odorless gas, constituting about 1% of the air volume. Argon is used in arc welding, incandescent lamps, and food preservation.

*Note: Information is only for reference./.

What is a Simple Substance and What is a Compound? Simple substances and compounds will be taught in which grade's chemistry program?

What is an element? What is a compound? When do students in Vietnam learn about elements and compounds according to Chemistry curriculum in Vietnam? ​(Image from the Internet)

When do students in Vietnam learn about elements and compounds according to Chemistry curriculum in Vietnam?

Based on Section 5 of the General Education Program for Natural Science issued under Circular 32/2018/TT-BGDDT, the general content includes content in the grade 7 curriculum as follows:

- Atom

- Chemical Element

- Brief Introduction to the Periodic Table of Chemical Elements

- Molecule; element; Compound

- Brief Introduction to Chemical Bonding

- Valency; Chemical Formula

Thus, according to the above regulations, students will be introduced to and learn about elements and compounds in the grade 7 chemistry program.

What is the general orientation for teaching methods in the grade 7 Chemistry program according to the 2018 curriculum in Vietnam?

According to Subsection 1 of Section 6 of the General Education Program for Chemistry issued under Circular 32/2018/TT-BGDDT, the general orientation for teaching chemistry based on the 2018 curriculum is as follows:

(1) Promote the active, proactive, and creative nature of students; avoid one-way imposition, rote memorization; focus on fostering self-reliance and self-study capabilities so that students can continue to explore, expand their knowledge, and develop their qualities and abilities after graduating high school.

(2) Train skills to apply chemical knowledge to identify and solve practical problems; encourage and create conditions for students to experience and create based on organizing students to participate in learning activities, exploring, discovering, and applying.

(3) Flexibly and creatively apply educational methods suitable to the educational objectives, content, target students, and specific conditions.

Depending on the required achievements, teachers can use a combination of various teaching methods in a subject.

Traditional teaching methods (lecturing, discussion,...) are used to stimulate the active and proactive nature of students.

Increase the use of teaching methods that emphasize the central role of the student in learning (hands-on learning, problem-based learning, project-based learning, experiential learning, exploration; differentiated teaching,... using suitable teaching techniques).

(4) Learning organization forms are carried out diversely and flexibly; combining individual learning, group learning, learning in class, project-based learning, self-study,...

Enhance the application of information and communication technology in chemistry teaching.

Emphasize external resource materials beyond textbooks and the equipped teaching device system; maximize the advantages of information and communication technology in teaching via multi-media knowledge - multi-tools, and increase the use of electronic materials (such as experiment films, virtual experiments, simulated experiments,...).

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