Which of the following statements is true? 1. All isotopes of a given element have the
same mass.
2. The atomic number of an element is the
number of protons in the nucleus of any of its
isotopes.
3. The nucleus of a neutral atom contains
an equal number of electrons and protons.
4. An ion has the same number of protons
and electrons.

first thing first of the answer is with technology. second thing second thing is that the big bang theory did not happened u see they say it did but what they dont realize is that like dinasures are still a round they might deny it but they and look at these 12 foot human skelteons they find lets see didnt the bible say something about giants. hope this peace.

i really dont know but i will try okay.

so i think u would just add all them up and get your answer..

the ima (higher than 1m) will be greater than the ima with the height of 1m.

answer a fan shaped mass of sediment deposited at the base of a mountain front do to an abrupt change in stream gradient;