Atom X has an atomic number 79 and an atomic mass of 197. Atom Y has an atomic number of 76 and an atomic mass of 197. Atom Z has an atomic number of 79 and an atomic mass of 200. What two atoms are considered to be the same element and why?

What reaction is taking place? 02 + c3h8 = h20 + co2

How is the shape of the poem “peer” connected to its meaning?

Imagine that a new planet is discovered with two moons of equal mass: moon a and moon b. the mass of the new planet is greater than the combined mass of its moons. moon a is farther away from the new planet than moon b. what is the planet's gravitational pull on moon a compared to the planet's gravitational pull on moon b? the planet's gravity repels moon a with a greater force than it repels moon b, which is why moon a is farther away. the gravitational pull on moon b is greater than on moon a because moon b is closer to the new planet than moon a. the gravitational pull on moon b is greater than on moon a because moon b is farther away from the new planet than moon a. the gravitational pull on moon a is the same as the gravitational pull on moon b because distance does not affect the planet's gravity.