Chemistry, 16.07.2019 22:50 chinnellepug8198

90 points urgent need answers correct and quick 1. oxygen is more reactive than nitrogen. true false match the element with its description. match term definition potassium great conductor of heat and electricity barium has properties of both metals and nonmetals boron nonreactive gas neon malleable and highly reactive 3. which of the following elements is the most reactive? beryllium calcium magnesium barium a neutral atom of chlorine (cl) has an average mass of 35 amu and 17 electrons. how many neutrons does it have? 17 35 18 52 which of the following elements has the largest atomic radius? potassium calcium cobalt nickel the element manganese is represented by the symbol (capitalization is important.) answer for blank 1: mn? use your periodic table of elements. take any element of your choosing (from period 4 or above) and answer the following questions: what is the element's name and symbol? is it a metal, nonmetal, or metalloid? which family does it belong to? how many protons, neutrons, and electrons does its neutral atom have?

Answers: 2

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Answers

1) True
Oxegen is more reactive to than nitrogen

2) I'm sorry, I don't know

3) Barium
It's more reactive than all the other elements

Last Question to the list:
The element I chose is sodium which contains 12 neutrons, 11 electrons and 11 protons. The number of electrons and protons come from the element's atomic number, which is 11. Sodium belongs to the Alkia Family which and has a atomic mass of 22.98977.

Answer from: osirisarellane3792

I am doing the same thing right now lol I got 100 percent. Here are my answers:

1. True

2. Potassium - Malleable and highly reactive

Barium - Nonreactive gas

Boron - Has properties of both metal and nonmetal

Neon - Great conductor of heat and electricity

3. Magnesium

4. Cobalt

5. Arsenic As Metalloid Nitrogen, group 15, period 4 33 protons 33 neutrons
All are correct I got 100 percent with these answers. Hope it helps! :)

Answer from: Quest

thats a little if u want the answer just look it up on google thats what i do haha : )

Draw the orbitals for the elements and give their number of electrons

Answer from: Quest

the best answer is d because the strong cohesion is caused by the ability of water molecules to undergo hydrogen bonding.

a is incorrect because when water solidifies, it becomes ice, which expands and occupies a bigger volume for the same mass of water in its liquid state.

b is incorrect because water has high surface tension. besides bonding to itself it hydrogen bonds to other molecules at the top decreasing possibility for breaking of attractive forces.

c is incorrect because the water molecule has oxygen which is highly electronegative and so pulls the electron pair towards itself creating a dipole moment, making the molecule polar.

e is incorrect because water has strong adhesion, ability to stick to other molecules such as glass because of this molecules having stronger hydrogen bonding than water.

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90 points urgent need answers correct and quick 1. oxygen is more reactive than nitrogen. true false...

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