Scientists are uncertain about the electronic structure of the Actinides because they have short lifespans. Some of the actinides have such short half lives that it is impossible to figure out their exact chemistry.
The atmosphere was rather quiet and uncertain.
Uncertain, but some say dead go to Hades, underworld. It was so in Athens, but Spartans were not very good writers, so we know very little. Explanation of the word Hades in unknown. Some scientists have suggested that it has something to do with the word "invisible". So death could mean that you become invisible and vanish, only thing that lives on of your biological body, is fame and memory in other people's minds.
The cause of Seurat's death is uncertain, and has been attributed to a form of meningitis, pneumonia, infectious angina, and/or (most probably)diphtheria. As far as I can find out diphtheria does not come in different types.
The official casualty count was 700, but as many as 3,000 people might have died. An estimated 225,000 people were left homeless, out of a population of about 400,000. Most of the fatalities occurred in San Francisco, and 189 were reported elsewhere..
The word "speculation" is a noun. It refers to the act of forming a theory or conjecture without firm evidence, or it can denote a financial transaction involving high risk, such as investing in stocks. In context, it can describe both the process of hypothesizing and the outcomes related to uncertain situations.
They have such short lifetimes
the actinides have complex atomic structures due to the presence of inner 5f orbitals, leading to difficulties in predicting their electronic configurations accurately. Additionally, the actinides exhibit multiple oxidation states, making it challenging to determine the precise electron arrangements in different chemical environments. The influence of both relativistic effects and electron correlations further complicates the understanding of actinide electronic structures.
Uncertain, but sometime in the early 1950s when an off the shelf electronic analog computer was interfaced to an electronic digital computer.
Scientists n there theories are uncertain still of how the moon formed about'
Scientists actually are uncertain whether fish actually feel pain or not.
I was uncertain about whose voice it was.He was uncertain about the results.
an uncertain man's relationship would b jus as uncertain as he is...
Uncertain etiology means the cause is unknown.
I am uncertain how to use a dictionary.
He felt uncertain about the future.
There is no definitive answer to whether Earth will lose its magnetic field in the future. Scientists believe that the magnetic field has weakened and shifted in the past, but it is uncertain if it will disappear completely.
THE ANSWER IS UNSURE. THIS IS ONE OF MANY SYNONYMS OF UNCERTAIN.