Answer:
Tin-120 because an atom has to have a neutral charge. If an atom has 50 electrons it must have 50 protons unless it's an ion. Add 70 to the atomic mass because it has 70 neutrons on top of 50 protons. That equals to 120. Tin has an atomic number of 50 (meaning it has 50 protons) and it has roughly an atomic mass of about 118. If the given has 70 neutrons then it's a isotope of tin.
What is the solute and the solvent in a carbonated drink?
Answers
The solvent is water. The solutes may include fruit juice, natural and artificial flavors, natural and artificial colorings, preservatives, carbon dioxide, and lots and lots of sugar.
The solvent is: Water The solute is : sugar any sweetener in the drink :P
What is the empirical formula for a compound if a sample contains 3.72 g of P and 21.28 g of Cl?
Which of the following is not an example of a chemical change?.
Answers
Well, I can tell you what a chemical change is and you can get your answer from there. A chemical change is when the very make up of the item is totally changed and can not be changed back. When one compound is converted into a totally new compound having different chemical properties. So... melting an ice cube would be physical and not chemical. Crumbling up a piece of paper would be physical becasue if you uncrumble it, it's still a piece of paper. But Burning paper would be considered chemical becasue now it's ash and you can't get that piece of paper back. I hope this helps!! c:
Answer:
Baking cake
Explanation:
U welcome
To show the electron configuration for an atom, what is the advantage of using an orbital notation compared to a dot structure?
Answers
The advantage of using an orbital notation is that it shows the electron distribution in shells.
Dot structures only show the valence electrons of an atom which are the electrons found at the outermost shell. The orbital notation gives a more detailed depiction of the electrons in each shell. This is most advantageous for atoms that have special cases.
Some examples of atoms that have special electronic configurations are copper and chromium. For example, copper is more stable when the 3d subshell is completely filled. This leaves the 4s subshell with only 1 electron. Chromium is also more stable when its s and d subshells are only half full. The orbital notation depicts these special cases, whereas the dot structure does not.
Answer:
2. Orbital notation shows the spin of the electrons.
Explanation:
Balance the following equation. Then determine the mole ratio of Ca(OH)2:Al(OH)3.Al2(SO4)3 + Ca(OH)2 Al(OH)3 + CaSO4? A) 2:3 B) 3:2 C) 1:2 D) 3:3 E) 1:1
How many electrons are in Br-? A) 4 B) 7 C) 34 D) 36 E) none of the above
Answers
The number of electrons in Br- (bromide ion) is option B) 7.
Bromine (Br) has an atomic number of 35, which means it normally has 35 electrons. However, since the bromide ion (Br-) has a negative charge, it has gained one extra electron, bringing the total number of electrons to 35 + 1 = 36.
So, the correct answer is not listed among the options given