1) What is the called the group of symbols of element in molecules of substance ? पदार्थको अणुहरुमा तत्वहरुको सङ्केत गर्ने समुहलाई के भनिन्छ ?
iAtomic number (पारमाणिक नम्बर )
ii) Atomic weight(पारमाणिक भार)
iii) Molecular formula (आणविक सुत्र )
iv) Molecular weight: आणविक भार)

"prior to 1910, these new artists were called neo-impressionists, and they believed that "modern paris" was the proper subject for their paintings."

this is the text provided by the program, disregard other answers, as they are confusing and based on loose knowledge of the subject.   : )