Answer:
An atom is made of up subatomic particles called protons, neutrons and electrons. The center of an atom is called the nucleus and is where the protons and neutrons are held while electrons orbit the nucleus in orbital shells. A electron has a negative charge, a proton has a positive charge, and a neutron has no charge (neutral).
The atomic number of a atom is the total amount of the atom's protons. In a neutral atom (Not an ion), the amount of electrons is the same as the protons. Therefore, the atomic number also tells the amount of electrons in the atom.
A ion is a negatively or positively charged particle due to the giving or taking of electrons with one or more atoms (Called an ionic bond). An atom that gives away electrons becomes positively charge because that atom now has more protons than neutrons. An atom that takes an electron becomes negatively charge because that atom now has more electrons than protons.
Atomic Mass is the sum of an atom proton and neutrons. To determine how many neutron an atom has, subtract the atomic mass from the atomic number. Electrons do not play a part in atomic mass as their mass is  1/1,836 of a proton's mass.
A isotope is two or more forms of the same element that contain equal amounts of protons but different amount of neutrons.
 
        
             
        
        
        
Answer: I have no idea what kind of question this is, but I'm assuming it's a true or false question, and this is true. Although the north-bound pole is south-seeking, a compass would eventually draw you to the North Pole.
Explanation:
 
        
             
        
        
        
Answer:
kau kje nk senang je kan . gi cari jawapan dlm buku la
Explanation:
aku x nk jwb . benda bole cri kt buku . ni la anak zmn skg ni . semua nk mudah
 
        
             
        
        
        
To measure the density of the stone placed in a graduated cylinder let us follow these steps bellow
- Measure the volume of water poured into a graduated cylinder
- Place the object in the water and remeasure the volume. 
- The difference between the two volume measurements is the volume of the object. 
- Divide the mass by the volume to calculate the density of the object.
<em>We know that the formula for density is given as </em>
Given data
Mass = 8gram
Initial Volume of water in cylinder = 25mL
Final Volume of water in cylinder  = 29mL
Hence the volume of the rock  = 29-25 = 4mL
Therefore the density of the rock = 8/4 = 2 g/mL
Learn more: 
brainly.com/question/17336041
 
        
             
        
        
        
Explanation:
The given precipitation reaction will be as follows.
         
Here, AgCl is the precipitate which is formed. 
It is known that molarity is the number of moles present in a liter of solution.
Mathematically,       Molarity = 
It is given that volume is 1.14 L and molarity is 0.269 M. Therefore, calculate number of moles as follows.
                     Molarity = 
                      0.269 M = 
                     no. of moles = 0.306 mol
As molar mass of AgCl is 143.32 g/mol. Also, relation between number of moles and mass is as follows.
                No. of moles = 
                    0.307 mol = 
                            mass = 43.99 g
Thus, we can conclude that mass of precipitate produced is 43.99 g.