unknown properties
this is a synthetic chemical element; it has symbol Mt and atomic number 109. It is an extremely radioactive synthetic element.
What is meitnerium? Mt
This is a chemical element; it has symbol Sr and atomic number 38. An alkaline earth metal, this is a soft silver-white yellowish metallic element
What is Strontium? Sr
This is a chemical element; it has symbol Rn and atomic number 86. It is a radioactive noble gas and is colorless and odorless.
what is radon? Rn
This is a chemical element; it has the symbol Se and atomic number 34. It is a nonmetal with properties that are intermediate
What is Selenium? Se
This is a chemical element; it has symbol Ge and atomic number 32. It is lustrous, hard-brittle, grayish-white and similar in appearance to silicon
What is Germanium? ge
this is a synthetic chemical element; it has symbol Mc and atomic number 115. It was first synthesized in 2003 by a joint team of Russian
What is Moscovium? Mc
This is a chemical element; it has symbol Ra and atomic number 88. It is the sixth element in group 2 of the periodic table
What is radium? Ra
Daily double: this is a chemical element; it has symbol Ar and atomic number 18. It is in group 18 of the periodic table and is a noble gas.
What is Argon? Ar
This is a chemical element; it has symbol C and atomic number 6. It is nonmetallic and tetravalent—meaning that its atoms are able to form up
What is carbon? C
this is a chemical element; it has symbol B and atomic number 5. In its crystalline form it is a brittle, dark, lustrous metalloid; in its amorphous form
What is boron? B
This is a synthetic chemical element; it has symbol Ts and atomic number 117. It is the second-heaviest known element
What is Tennessine? Ts
This is a chemical element; it has symbol Ca and atomic number 20. As an alkaline earth metal, this is a reactive metal that forms a dark oxide
What is calcium? Ca
This is a chemical element; it has symbol He and atomic number 2. It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas
What is Helium? He
this is a chemical element; it has symbol N and atomic number 7. Nitrogen is a nonmetal and the lightest member of group 15 of the periodic table
What is Nitrogen? N
This is a chemical element; it has symbol As and atomic number 33. Arsenic occurs in many minerals, usually in combination with sulfur and metals
What is Arsenic? as
Daily double: This is a synthetic chemical element; it has symbol Og and atomic number 118. It was first synthesized in 2002 at the Joint Institute
What is oganesson? Og
This is a chemical element; it has symbol Mg and atomic number 12. It is a shiny gray metal having a low density, low melting point
What is Magnesium? Mg
This is a chemical element; it has symbol Xe and atomic number 54. It is a dense, colorless, odorless noble gas found in Earth's atmosphere
What is Xenon? Xe
This is a chemical element; it has symbol O and atomic number 8. It is a member of the chalcogen group in the periodic table,
What is oxygen? O
Daily double: This is a chemical element; it has symbol Sb and atomic number 51. A lustrous gray metalloid, it is found in nature mainly as the sulfide mineral
What is Antimony? Sb
Daily double: This is a synthetic chemical element; it has symbol Ds and atomic number 110. It is extremely radioactive
What is Darmstadtium? Ds
This is a chemical element; it has symbol Ba and atomic number 56. It is the fifth element in group 2 and is a soft, silvery alkaline earth metal.
what is barium? Ba
Daily double: This is a chemical element; it has symbol Ne and atomic number 10. It is the second noble gas in the periodic table.
What is neon? Ne
Daily double: This is a chemical element; it has symbol P and atomic number 15. Elemental came from this element it exists in two major forms
What is Phosphorus? P
This is a chemical element; it has symbol Si and atomic number 14. It is a hard, brittle crystalline solid with a blue-grey metallic luster
What is Silicon? si