the table shows the weight of a radioactive substance which decreases by 12 every year. find the weight of the radioactive subst

The table shows the weight of a radioactive substance, which decreases by 1 2 every year. Find the weight of the radioactive substance in the 3 rd year. Time Weight of radio ..

Carbon-14 is unstable and decays by beta emissions to nitrogen. Because of the constant production of carbon-14 and its radioactive decay, a small fractional abundance of carbon-14 is maintained in the atmosphere. Living plants, which use carbon dioxide from the atmosphere, also maintain ..

In 1896, the phenomenon of radioactivity was accidentally discovered by French scientist Henri Becquerel. He was performing experiments with uranium compounds. He accidentally placed a crystal of potassium uranyl sulphate over photographic plate wrapped with usual black paper. On develo..

A radioactive nucleus or element emits an alpha or a beta particle and gets converted into a new nucleus or element. The process of destruction of the original nucleus during the formation of new nucleus due to radioactivity is called Radioactive decay or disintegrat..

The table shows the weight of a child as he ages. Choose the appropriate scatter plot which best represents the table. Age (in Years) Weight (in pounds) 2 20 3 25 4 28 5 30 6 35 => Figure 1 or Figure 2 or Figure 3 or Figure 4..

The table shows the ages and the weights of a group of people. Identify the scatter plot that represents the data. Age (in years) Weight (in kg) 18 57 18 62 22 74 23 60 20 75 22 68 21 56 20 55 26 73 18 74 19 60 18 72 => Graph 3 or Graph 1 or Graph 2 or None o..

The mean weights of 100 infants who were weighed each month during their first year of life are shown here. Determine the equation of the regression line and plot the line on the scatter plot. Age (in months) ( x ) 1 2 3 4 5 6 7 8 9 10 11 12 Weight (in pounds..

The table shows the growth in the number of people joining marshall arts school in a small town near California between 1980 and 2000. The proportion of the male students over the years is _______. Year 1980 1985 1990 1995 2000 Male 304 459 699 1021 1290 Fema..

Bacterial Disease Disease Symptoms Prevention and Control Tuberculosis Loss of weight Vaccination Persistent diarrhoea is intestinal tuberculosis Use of suitable antibiotic Intermittent fever with a dry husky cough in lung tuberculosis B..

Since it is not possible to calculate the weight of particles individually, a collection of such particles called mole is taken for all practical purposes. It was discovered that the number of atoms present in 12g of carbon of 12 C isotope is 6.023 x 10 23 atoms. This ..