Name that element! Which element on the periodic table helps play tricks with birthday candles, colors plants green, and soothes achy stomachs? Follow these eight clues to sleuth the identity of this element. Then, turn the page to test your chemistry IQ....
In the periodic table, there is an element whose English name starts with 'H' and it is the lightest element. What is its chemical symbol? A. He B. H C. Hg D. Ho 相关知识点: 试题来源: 解析 B。解析:英文名称以'H'开头且是最轻的元素是氢(Hydrogen),其化学符号是H。He是氦(Helium)...
Theperiodic table of elementsis a landmark categorization developed in 1869 by the Russian chemist and inventor Dmitri Mendeleev. Itarranges all natural and synthetic elementsby their atomic number , ranging from 1 to 118, grouping them by elements that look or behave similar...
Name that element! It powers rockets to the moon, can bleach your hair, and decimates zits. It's Earth's most abundant element and interacts with a staggering number of chemicals. Can you name it? Grab a periodic table and follow these eight clues. Then turn the page to test your "...
Explore the element of your choice through this periodic table. 12 3456789101112131415161718 1 H 2 He 3 Li 4 Be 5 B 6 C 7 N 8 O 9 F 10 Ne 11 Na 12 Mg 13 Al 14 Si 15 P 16 S 17 Cl 18 Ar 19 K 20 Ca 21 Sc 22 Ti 23 V 24 Cr 25 Mn...
Name an element in the third period (row) of the periodic table with two {eq}3s {/eq} electrons and no {eq}3p {/eq} electrons. Periods and Groups: Elements in the periodic table belonging to the same group or periods share a common characteristic t...
Refer to the periodic table and give the period and group number for each of these elements: (a) neon (b) barium (c) iodine How do you know what element is chemically active on the periodic table? What is the common name of N2O?
What’s true of a radioactive element? FEMALE STUDENT: It decays? It turns into other elements?Oh, so does that explain why it was missing in the periodic table? MALE PROFESSOR: Exactly. Because of its radioactive decay, element 43 doesn't last very long …and therefore… if it ever ...
Calcium Ca periodic table element with name symbol atomic number and weight. Alkaline earth metal with various industrial uses such as in construction pharmaceuticals and as a nutrient,站酷海洛,一站式正版视觉内容平台,站酷旗下品牌.授权内容包含正版
Name or state with reference to the elements of the modern periodic table. The formula of the sulphite of the element in period-3, group 1 [IA]. View Solution What is the main characteristic of the last elements in the periods of a periodic table? What is the general name of such elem...