It has 11.99 neutrons
What is sodium?
This transition metal has the symbol Fe.
What is iron?
This nonmetal gas is essential for the Earth to host what it does host, life
What is oxygen?
This noble gas is used to fill balloons.
What is helium?
This actinide has the symbol U and is used as fuel in some nuclear reactors.
What is uranium?
This alkaline-earth metal is the main metal in certain parts of our bodies and has an atomic mass of 40.078
What is calcium?
This reddish-brown transition metal is used in electrical wiring.
What is copper?
This metal is liquid at ordinary room temperature and has the atomic number of 80
What is mercury?
This halogen is often used to disinfect swimming pools and has the atomic mass of 17.
What is chlorine?
This lanthanide has the symbol Ce and is used in some lighter flints.
What is cerium?
This soft alkali metal has the symbol of the 11 letter of the alphabet.
What is potassium?
This transition metal is commonly used in jewellery and coins.
What is silver?
This nonmetal forms the basis of organic chemistry and has a lot to do with smoke from fires
What is carbon?
This noble gas gives many signs their familiar red-orange glow and colours.
What is neon?
This radioactive actinide has the symbol Pu.
What is plutonium?
This alkaline-earth metal is used in lightweight alloys and has the atomic mass of 24.3 and has 12.305 neutrons.
What is magnesium?
This transition metal is used to make stainless steel more corrosion-resistant.
What is chromium?
This lightweight metal is widely used in drink cans.
What is aluminum (aluminium)?
This halogen is a dark, shiny solid at room temperature and has the atomic mass of 126.9.
What is iodine?
This lanthanide's symbol is the same of the 2 letters for a major union of countries and named after said country
What is europium?
This alkali metal has atomic mass of 132.9 and is used in some atomic clocks.
What is cesium (caesium)?
DAILY DOUBLE!!!
This rare-earth element has the chemical symbol Tb and is used in some green phosphors and electronic displays.
What is terbium?
This metalloid is widely used in computer chips.
What is silicon?
This noble gas has the atomic mass of 222 and is radioactive.
What is radon?
This actinide is named after Ernest Lawrence.
What is lawrencium?