Chemistry, 30.10.2019 09:31, elnkun98owvaa6

1. know the parts and characteristics of particles that make up an atom.

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answered: hanhann6895

Atom is made up of an electron shell, subatomic particles, and an atomic nucleushope it helps!

answered: brendacauani12345

Atoms are made up of electrons,neutrons, and protons. The protons and neutrons are what the nucleus is made up of. Nucleus has an overall positive charge as protons have a positive charge neutrons have a neutral charge(no charge) and electrons have a negative charge.
Protons+1
Neutrons0
Electrons-1
Protons weight 1
Neutrons 1
Electrons weight 0 rounded
Electrons surround the nucleus
The first electron shell can keep 2 electrons
The second 8 electrons
The third 8 electrons
The fourth eight electrons
Atoms are the smallest particle that can take part in a chemical reaction

answered: Guest

kuchisake

kuchisake-onna (口裂け女, "slit mouth woman ") is a malevolent figure appearing in japanese ghost stories, possibly dating back to the edo period. she takes the form of a masked woman who approaches people and asks them if they believe she is pretty.

explanation:

answered: Guest

a mercury barometer is a device that uses the physical properties of mercury in a tube to measure barometric pressure. mercury barometers are used for : -

1. measurement of atmospheric pressure

2. determining the altitude of a place

3. weather forecasting

4. calibration and checking of aneroid barometers

5. application in fluid mechanics

6. measurement of pressure in aircrafts

7. surface weather analysis

8. preparation of barographs

9. usage in physical sciences like physics, astronomy & chemistry

10. preparation of aircraft altimeters

characteristics of mercury barometer : -

1.used to define and measure atmospheric pressure.

2.on the average at sea level the column of mercury rises to a height of about 760 mm.

3.this quantity is equal to 1 atmosphere.

4.it is also known as standard atmospheric pressure.

5.a barometer in which the weight of a column of mercury in a glass tube with a sealed top is balanced against that of the atmosphere pressing on an exposed cistern of mercury at the base of the mercury column, the height of the column varying with atmospheric pressure.

Write 15 uses of a mercury barometer along with its characterestics

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1. know the parts and characteristics of particles that make up an atom....