What are trực tiếp bóng đá việt nam hôm nay newest 2nd mid-semester question papers and answers for 10th-grade Chemistry in 2025? What is trực tiếp bóng đá việt nam hôm nay required knowledge regarding atomic structure in trực tiếp bóng đá việt nam hôm nay Chemistry curriculum for 10th-grade students in Vietnam?
What are trực tiếp bóng đá việt nam hôm nay newest 2nd mid-semester question papers and answersfor 10th-grade Chemistryin 2025?
Download 2nd mid-semester question papers for 10th-grade Chemistry
Download2nd mid-semester question papers for 10th-grade Chemistry
Note: trực tiếp bóng đá việt nam hôm nay informationis for reference only!
What are trực tiếp bóng đá việt nam hôm nay newest 2nd mid-semester question papers and answers for 10th-grade Chemistry in 2025? What is trực tiếp bóng đá việt nam hôm nay required knowledge regarding atomic structure in trực tiếp bóng đá việt nam hôm nay Chemistry curriculum for 10th-grade students in Vietnam?
What is trực tiếp bóng đá việt nam hôm nay requiredknowledgeregardingatomic structurein trực tiếp bóng đá việt nam hôm nay Chemistry curriculum for 10th-grade students in Vietnam?
Under trực tiếp bóng đá việt nam hôm nay General Education Program for Natural Sciences issued along withThông tư 32/2018/TT-BGDĐT, trực tiếp bóng đá việt nam hôm nay requiredknowledgeregardingatomic structurein trực tiếp bóng đá việt nam hôm nay Chemistry curriculum for 10th-grade students in Vietnam isas follows:
Components of an Atom
An atom is extremely small, consisting of two main parts: trực tiếp bóng đá việt nam hôm nay nucleus and trực tiếp bóng đá việt nam hôm nay atomic shell.
trực tiếp bóng đá việt nam hôm nay nucleus is made up of protons (p) with a positive charge and neutrons (n) with no charge.
trực tiếp bóng đá việt nam hôm nay atomic shell contains electrons (e) with a negative charge.
Mass comparison: trực tiếp bóng đá việt nam hôm nay mass of an electron is much smaller compared to protons and neutrons. trực tiếp bóng đá việt nam hôm nay size of trực tiếp bóng đá việt nam hôm nay nucleus is also much smaller than trực tiếp bóng đá việt nam hôm nay entire size of trực tiếp bóng đá việt nam hôm nay atom.
Chemical Elements
A chemical element is a set of atoms sharing trực tiếp bóng đá việt nam hôm nay same number of protons in their nuclei.
Atomic number is trực tiếp bóng đá việt nam hôm nay number of protons present in trực tiếp bóng đá việt nam hôm nay nucleus of an atom of an element.
Isotopes are atoms of trực tiếp bóng đá việt nam hôm nay same element, but with different numbers of neutrons.
Atomic mass is trực tiếp bóng đá việt nam hôm nay relative mass of an atom compared to trực tiếp bóng đá việt nam hôm nay atomic mass unit (amu).
Average atomic mass is calculated based on trực tiếp bóng đá việt nam hôm nay mass and percentage of atoms of trực tiếp bóng đá việt nam hôm nay isotopes as provided in trực tiếp bóng đá việt nam hôm nay mass spectrum.
Atomic Electron Shell Structure
trực tiếp bóng đá việt nam hôm nay Rutherford-Bohr atomic model describes trực tiếp bóng đá việt nam hôm nay movement of electrons around trực tiếp bóng đá việt nam hôm nay nucleus in defined orbits, while trực tiếp bóng đá việt nam hôm nay modern model uses atomic orbitals (AO) to describe trực tiếp bóng đá việt nam hôm nay space with a high probability of finding electrons.
Atomic orbitals have distinctive shapes, for example: trực tiếp bóng đá việt nam hôm nay s orbital is spherical, trực tiếp bóng đá việt nam hôm nay p orbital is shaped like a figure-eight.
trực tiếp bóng đá việt nam hôm nay electron shell includes multiple sub-shells, each sub-shell having a certain number of orbitals.
trực tiếp bóng đá việt nam hôm nay electron configuration is written by shell, sub-shell for elements with an atomic number Z from 1 to 20, or by orbital boxes.
Based on trực tiếp bóng đá việt nam hôm nay outermost electron configuration, one can predict trực tiếp bóng đá việt nam hôm nay basic chemical properties of trực tiếp bóng đá việt nam hôm nay element, classifying it as metal or non-metal.
In Vietnam, what are thespecific competencies requiredfor students in trực tiếp bóng đá việt nam hôm nay Natural Science subject?
According to trực tiếp bóng đá việt nam hôm nay General Education Program for Natural Sciences issued byThông tư 32/2018/TT-BGDĐT, thespecific competenciesrequired for students in trực tiếp bóng đá việt nam hôm nay Natural Science subject are outlined.
Natural Science subjects help students develop scientific competencies, including three main components: scientific comprehension, exploring nature, and applying learned knowledge and skills. To be specific, trực tiếp bóng đá việt nam hôm nay manifestations of each competency component are presented as follows:
Scientific Comprehension
Students can present and explain core knowledge on structure, diversity, systematics, laws of motion, and interactions in trực tiếp bóng đá việt nam hôm nay natural world. Specific manifestations include:
Recognizing, naming objects, phenomena, concepts, and natural laws.
Presenting characteristics and roles of objects and phenomena through spoken and written language, diagrams, charts, formulas, etc.
Classifying, comparing, and analyzing characteristics of objects and phenomena based on specific criteria.
Using keywords, scientific terms, connecting information, and outlining while reading and presenting scientific texts.
Explaining relationships between natural phenomena (cause-effect relations, structure-function, etc.).
Detecting errors and making adjustments while providing critical evaluations.
Exploring Nature
Students perform basic skills to explore and explain natural phenomena in practice and substantiate issues with scientific evidence. Specific manifestations include:
Proposing issues and raising questions: Identifying issues, raising questions, analyzing context to propose issues based on existing knowledge.
Formulating hypotheses: Analyzing issues, predicting outcomes, and stating hypotheses to be studied.
Planning implementation: Constructing exploration content logically, choosing appropriate methods (observation, experimentation, investigation, interview, etc.), planning deployment.
Implementing trực tiếp bóng đá việt nam hôm nay plans: Collecting and processing data, evaluating results based on statistical parameters, comparing with hypotheses, and drawing conclusions.
Reporting and discussion: Expressing research results through documents, diagrams, charts, writing scientific reports, and discussing and defending viewpoints.
Making a decision and proposing solutions: Making decisions and proposing ways to address trực tiếp bóng đá việt nam hôm nay studied issues.
Application ofAcquired Knowledge and Skills
Students use scientific knowledge to explain natural phenomena, environmental issues, and sustainable development and find solutions to problems in life. Specific manifestations include:
Recognizing and explaining real-world issues based on scientific evidence.
Proposing and implementing solutions for environmental protection, adapting to climate change, and aiming for sustainable development.
