Please help me. The atomic weight of aluminum (Al) is 26.98. It has 14 neutrons. Aluminum has

1. an atomic mass of 13
2.an atomic number of 13
3.26 electrons
4.26 protons

Which two objects have the greatest gravitational force acting between them

Aphysical change is a change in the size, shape,, or stafe of matter true or false

Amass attached to a spring is displaced from its equilibrium position by 5cm and released. the system then oscillates in simple harmonic motion with a period of 1s. if that same mass–spring system is displaced from equilibrium by 10cm instead, what will its period be in this case? a mass attached to a spring is displaced from its equilibrium position by and released. the system then oscillates in simple harmonic motion with a period of . if that same mass–spring system is displaced from equilibrium by instead, what will its period be in this case? a) 0.5sb) 2sc) 1sd) 1.4s