The modern periodic law, according to Moseley, classifies elements based on arranging elements in ___ order

a. atomic number

b. atomic mass

c. size of atomic radii

d. mass number

What's is the definition of STD

What causes a star to shine brightly? the color that is produced the energy that is released the amount of gravity that is present the types of elements that are present

Predict the outcome of velocity & acceleration being in the same direction or opposite directions

Julia designed an experiment to find out if microwaving apple seeds keeps the seeds from sprouting. First, Julia separated 24 apple seeds into four groups. Next, she set aside the first group to use as a control.

Why doesnt the moon crash towards earths surface?

Describe the possible long term impact of a catastrophic event

Calculate the mass defect of the helium nucleus 42He. The mass of neutral 42He is given by MHe=4.002603u.

A transparent film laminated to a fabric is identified in the study material as a. stretch fabric. b. PVC. c. a skin. d. two-faced fabric

Technician A says that all friction and steel plates in a clutch pack should be replaced during and overhaul. Technician B says that the automatic transmission fluid cooler should always be flushed when a unit is rebuilt or replaced.

Cold water (cp = 4180 J/kg·K) leading to a shower enters a thinwalled double-pipe counterflow heat exchanger at 15°C at a rate of 1.25 kg/s and is heated to 60°C by hot water (cp = 4190 J/kg·K) that enters at 100°C at a rate of 4 kg/s.