News

Scientists use the periodic table to quickly refer to information about an element, like atomic mass and chemical symbol. The periodic table’s arrangement also allows scientists to discern trends in ...
In this periodic table of elements quiz, you have 10 minutes to name as many elements as you can, given only their symbol, ...
This is the second part of a three-part series written by Carolyn Krause. Many of the elements were synthesized using an Oak Ridge reactor.
More than 75 years after its initial discovery, scientists have created an organometallic molecule containing the transuranium element berkelium. According to a new study, the electronic signature of ...
The modern periodic table is based closely on the ideas he used. These ideas were: The elements are arranged in order of increasing atomic mass The horizontal rows are called periods The vertical ...
TULELA: Thanks, NNICK. SUNAYANA: So let’s just summarise Mendeleev’s table. He arranged elements in order of increasing atomic weight. The horizontal rows are called periods. The vertical ...
It is the principle strengthening element in carbon steels and low-alloy steels. Atomic number 6, atomic weight 12.01115. Manganese (Mn): Manganese is a brittle, metallic element that exists in ...
1. Convert kilograms/second to grams per second. 1 kg = 1000 grams. If the mass flowrate is 0.25 kilograms/second, convert this to 250 grams/second. 2. Convert grams to moles, using the molar mass of ...
At the heart of our biological composition are four elements: oxygen (O), carbon (C), hydrogen (H) and nitrogen (N). These account for 96.6 per cent of our body weight. These four elements work ...