1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Effectus [21]
3 years ago
11

This is how fluorine appears in the periodic table.9 F Flourine 19.00 What information does “9” give about an atom of fluorine?

the atomic number
the atomic mass
the number of protons
the number of electrons
the number of neutrons
Check all that apply.
Chemistry
2 answers:
siniylev [52]3 years ago
8 0
The atomic number, the number of protons and the number of electrons.
Nataliya [291]3 years ago
8 0

Answer:

atomic number

number of protons

number of electrons

Explanation:

Fluorine is the first member of the halogen group. It has an atomic number, Z = 9 and atomic mass (A) = 19. The element is represented as:  ₉F¹⁹

Atomic number (Z) = number of protons = number of electrons for a neutral atom

Atomic mass (A) = number of protons + number of electrons

Thus the number 9 represents:

-The atomic number

-number of protons

-number of electrons

You might be interested in
How many moles are in 5.6x1025 molecules of calcium oxide?
Vlad1618 [11]

Answer:

<h2>93.02 moles</h2>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

n =  \frac{N}{L} \\

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

n =  \frac{5.6 \times  {10}^{25} }{6.02  \times  {10}^{23} }  \\  = 93.023...

We have the final answer as

<h3>93.02 moles</h3>

Hope this helps you

8 0
2 years ago
match these items. three-dimensional bonding, hardest natural substance, used as lubricant, nonconductor, weak planar bonds, car
DENIUS [597]

Answer:

1. three-dimensional bonding

Diamond

2. Hardest natural substance

diamond

3. Used as lubricant

Graphite

4. nonconductor

Diamond

5. Weak, planar bonds

Graphite

6.Carbon black or soot

Amorphous

Explanation;

sorry im late, hopefully this can help somebody :)

4 0
2 years ago
The majority of the elements essential to life are found in what part of the periodic table?
IRINA_888 [86]
The rows in the top third - This group consists of elements like Sodium, Magnesium, Potassium and Calcium on the right and Chlorine, Carbon, Nitrogen and Oxygen on the left.
Sodium and Chlorine are components of salt, a very important compound of our blood, essential for transferring electrical signals from the brain to the rest of the body and vice versa. Calcium is the building block of our bones, while Magnesium and potassium ensure proper functioning of our organs.

3 0
3 years ago
a friend is trying to describe a material to you. which of the following is not a description of a physical property of the subs
Masja [62]

The answer for it is C. when you mix it with water it fizzes

4 0
3 years ago
How much heat is added if .0948g of water is increased in temperature by .728 degrees C?
Verdich [7]

Answer:

0.289J of heat are added

Explanation:

We can relate the change in heat of a substance with its increasing in temperature using the equation:

q = m*ΔT*S

<em>Where Q is change in heat</em>

<em>m is mass of substance (In this case, 0.0948g of water)</em>

<em>ΔT = 0.728°C</em>

<em>S is specific heat (For water, 4.184J/g°C)</em>

Replacing:

q = 0.0948g*0.728°C*4.184J/g°C

q = 0.289J of heat are added

5 0
2 years ago
Other questions:
  • Write out the balanced equation for the following word equation. Use the proper state abbreviations for each of the reactants an
    6·1 answer
  • In order for plants to go through photosynthesis, they must use
    6·1 answer
  • Sodium metal is placed in water to produce sodium hydroxide (NaOH)
    15·1 answer
  • Is a relationship to a seaweed and a crab plIs a relationship to a seaweed and a crab plz help
    14·1 answer
  • Si escuchas a alguien decir que la corriente eléctrica en un sircuito sale por el polo negativo de la pila y entra por el polo p
    10·1 answer
  • Compound X has a molar mass of 104.01 g.mol and the following composition:
    6·1 answer
  • Which one of the following statements BEST describes a chemical reaction?
    5·1 answer
  • A balanced chemical equation has the same number and type of atoms in the reactants as compared to the products. An unbalanced c
    7·1 answer
  • A 187.4g sample of C3H5(NO3)3 decomposes to produce carbon dioxide, water, diatomic oxygen and diatomic nitrogen.
    11·1 answer
  • HELP PLEASE!!!!! <br> show work
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!