The element with the symbol 'K' is in which period of the periodic table? A. Period 1 B. Period 2 C. Period 3 D. Period 4 相关知识点: 试题来源: 解析 C。解析:元素符号为“K”的钾元素位于周期表的第三周期。第一周期元素为氢、氦,第二周期元素为锂、铍等,第四周期元素有钾之后的钙等...
In the periodic table, K is the symbol for which element? What element has a symbol of B? Which element has the following configuration: [Xe]6s^2 4 f^11? Enter the chemical symbol for the element. Which element below includes six electrons in its Lewis symbol? a. Cr b. Ni c. Ba...
3、Which animal is known as the "king of the jungle"?a. Lion b. Tiger c. Elephant d. Bear 答案:a 4、填空题：He is a pilot, ___ (他是一名飞行员), who navigates through the skies.5、 Mountains are in ___ (北美). 填空题：The Rock 6、What is the capital of the Netherlands?
1、What is the name of the famous French landmark known for its iron lattice structure?A. Eiffel Tower B. Louvre Museum C. Arc de Triomphe D. Notre-Dame Cathedral 2、What is the name for a giant cloud of gas and dust in space?A. Galaxy B. Star C. Nebula D. Planet 3、What is ...
Symbol K A soft, highly reactive, silvery-white metallic element that is an alkali metal and occurs in nature only in compounds. It is essential for the growth of plants and is used especially in fertilizers and soaps. Atomic number 19. See Periodic Table. The American Heritage® Student ...
The Company's Common Stock is quoted on the OTC Bulletin Board, under the symbol “RTTE.” The Company's Common Stock is traded in the OTCBB sporadically with no significant volume. The Company’s common stock has had only very limited activity. Quarter Ended High Bid Low Bid December 20...
Backslash symbol (\), which is followed by a single character; matches that character. Can be used with a single character with no other significance (matching that character). Question mark (?), which indicates that the preceding digit occurred zero or one time. Brackets ( [ ] ), whic...
Which animal is known for its stripes?A. Lion B. Elephant C. Zebra D. Giraffe 2. 听力填空题：I believe in being environmentally friendly by ___.3. 填空题：The bison's bulk helps it endure harsh ___ (天气).4. 填空题：The country known for its lighthouses is ___ (美国).5. 听...
She has a ___ (happy/sad) expression.2、填空题：My brother loves to explore ___.3、填空题：The ___ was a major event in European history in the 14th century.4、填空题：I can create my own ___ (玩具) using blocks.5、填空题：The bus is ___ (到达).6、填空题：A ___ (青蛙...
62K The periodic table contains information about elements, such as their symbol, atomic number, and atomic mass. Understand the structure and uses of the periodic table and learn about the order and groups of elements. Related to this Que...