Question

6) ਆਧੁਨਿਕ ਆਵਰਤੀ ਸਾਰਨੀ ਵਿਚ ਪਹਿਲੇ ਦਸ ਤੱਤਾਂ ਵਿੱਚ ਕਿਹੜੀਆਂ ਧਾਤਾਂ ਹਨ ?In the modern periodic table which are the metals among the first ten elements ? आधुनिक आवर्त सारणी के पहले दस तत्वों में कौन-सी धातुएँ हैं? *

Na ਅਤੇ Mg / Na and Mg / Na और Mg

Zn ਅਤੇ Cu / Zn and Cu / Zn और Cu

Li ਅਤੇ Be / Li and Be / Li और Be

K ਅਤੇ Ca /K and Ca / K और Ca

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Answer 1

Answer:

Explanation:

Science (from Latin scientia 'knowledge')[1] is a systematic enterprise that builds and organizes knowledge in the form of testable explanations and predictions about the universe.[2][3][4]

The earliest roots of science can be traced to Ancient Egypt and Mesopotamia in around 3000 to 1200 BCE.[5][6] Their contributions to mathematics, astronomy, and medicine entered and shaped Greek natural philosophy of classical antiquity, whereby formal attempts were made to provide explanations of events in the physical world based on natural causes.[5][6] After the fall of the Western Roman Empire, knowledge of Greek conceptions of the world deteriorated in Western Europe during the early centuries (400 to 1000 CE) of the Middle Ages,[7] but was preserved in the Muslim world during the Islamic Golden Age.[8] The recovery and assimilation of Greek works and Islamic inquiries into Western Europe from the 10th to 13th century revived "natural philosophy",[7][9] which was later transformed by the Scientific Revolution that began in the 16th century[10] as new ideas and discoveries departed from previous Greek conceptions and traditions.[11][12][13][14] The scientifi