2 years ago

help plz

1 answer:

4 0

The atomic mass, or mass number, of an element tells you the total number of protons and neutrons in one atom of the element. If you know the atomic number of the element and the mass number, you can figure out how many protons and neutrons are in the nucleus of one atom.
the sum of electrons and protons in an atom

You might be interested in

Help please I’ll mark as brainliest

IceJOKER [234]

Sorry for the messy handwriting but this is what I got

5 0

2 years ago

An electric bell is placed inside a transparent glass jar. The bell can be turned on and off using a switch on the outside of th

Art [367]

The answer is : We’ll see the bell move, but we won’t hear it ring. This is because light can travel through vacuum but sound cannot. Sound waves are vibrations of particles in any media, so sound requires a medium to travel, and it cannot travel in a vacuum as there is no particles to vibrate.

5 0

3 years ago

Read 2 more answers

A car drives 100 km north, 50 km east, then 10 km south. What is the car's displavement?

Over [174]

Answer:

$\sqrt{ ({40}^{2} } + {50}^{2} ) = \sqrt{(1600 + 2500)} = \sqrt{4100} = 64.03$