2.)what is the place value of 7 in 970 123 885 3.)in 292.145,what number is in the thousands place?

4.)what is the place value of 9 in 6547.965?

5.)in 476.8976,what is the
value of underline digi?...si number 7 po naka underline.​

2. place value of 7 is crore 70000000

3. 5

4. tens

5. tens

2.place value is 70 000 00

explanation:

let the different atoms be x and y. each with four protons and same mass will be represented as follows.

mass number is number of protons + number of neutrons.

            and  

since, it is given that one has a negative charge while the other is neutral. therefore, there will be increase in number of protons and the atom will be represented as follows.

according to periodic table, mass number of beryllium is 9 and it has atomic number 4 so, the atoms will be and .  

the protons and neutrons will be located inside the nucleus whereas the electrons will be revolving around the nucleus.  

level 4 to level 2 : ))