D-block elements are also known as the transition metals.
There are more non-elements than elements. Non-elements refer to everything that is not classified as an element, such as compounds, mixtures, and substances that do not fit the definition of an element.
This statement is incorrect. Inner transition elements are a subset of transition elements, and they refer specifically to the lanthanides and actinides series. There are more transition elements (d-block elements) than inner transition elements in the periodic table.
Colder elements typically refer to substances that exhibit lower temperatures or are associated with cold conditions. In a scientific context, this could include elements like helium, nitrogen, and argon, which remain gases at low temperatures. Additionally, in a broader sense, colder elements may refer to the physical states of matter, such as solids and liquids, that can exist at lower temperatures, as well as their thermal properties and behaviors in cold environments.
Stones refer to minerals and rocks that are mainly composed of inorganic materials, while irons typically refer to metallic elements such as iron itself or alloys containing iron.
Rare earths refer to a group of 17 elements in the periodic table, specifically the 15 lanthanides (from lanthanum to lutetium) along with scandium and yttrium. These elements are known for their similar properties and are often found together in nature. Despite their name, rare earth elements are relatively abundant in the Earth's crust but are seldom found in economically viable concentrations. They are crucial in various high-tech applications, including electronics, renewable energy technologies, and advanced materials.
The transition metals
Elements and compounds
3
The 40 elements refer to the 40 transition metal elements. There are in total 118 known elements to this day.
All of the elements are on the periodic table of the elements. Refer to the related links for a printable periodic table.
refer periodic table
Megafauna means large animals. Sometimes, it is used to refer to the unusually large animals of the last ice age, such as mammoths. Sometimes, it is used to refer to large, extinct animals, such as the short-faced bear or the sabre-toothed cat. Sometimes, it is used to refer to dinosaurs. Sometimes, it is used to refer to large, modern animals, such as polar bears and hippopotami.
The elements of "consist" typically refer to the components or parts that make up a whole. In a broader context, it can also refer to the characteristics or qualities that are consistently present in something.
Refer to the related link for a periodic table listing the electronegativities of the elements.
Holland
Yes, oxygen is very reactive. In fact its name was "borrowed" to refer to an entire class of energetic chemical reactions (even if they don't actually involve the element oxygen) called oxidation reactions.
Pennsylvania, Masschusetts, Virginia, and Kentucky sometimes refer to themselves as "Commonwealths". Pennsylvania, Massachusetts, Virginia, and Kentucky sometimes refer to themselves as "Commonwealths".