Question

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?

Answer 1

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 2

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! :)