What makes the atomic radius change along a period in the periodic table? A. More electrons in the valence shell make the radius bigger.
B. More protons in the nucleus pull the electrons in, making the
atomic radius smaller.
C. The increased atomic mass makes the atomic radius bigger.
D. More electrons pair in orbitals, making the atomic radius smaller.

so here we go

atomic mass

239 + 1 = y + 134 + 3 combine like terms

240 = y + 137             subtract 137 from both terms

240 - 137 = y

103 = y

atomic number

94 = z +54 + 0

94 = z + 54               subtract 54 from both sides.

40 = z

answer

water at room temperature is flowing through a pipe with pressure taps located 10 ft apart along one section of the pipe, which are connected to a mercury (s=13.6) manometer.

here are some of the ways in which chemical and nuclear reactions differ.

explanation: