Subshell f is represneted
The energy needed to warm water be 55 Celsius would be
Q=m*c* Delta T
We are given the following data
Q=526
m=7.4
T=17C= 526/17*7.4
Putting in the equation we get
Q=mc DeltaT
<span>Q=7.4x55x526/17x7.4
=55x526/17
</span>
=1701.64 C
Lower left corner and the upper right corner before the noble gases
Number of valence electrons
Explanation:
The most reactive elements are the most electropositive and electronegative elements.
Francium is the most reactive metal and flourine the most reactive non-metals.
Francium is the most electropositive metal and fluorine is the most electronegative non-metal.
Electropositivity is the ability of an atom to willingly lose its valence electrons. This is typical of metals.
Electronegativity is the ability of atoms to attract the shared electrons to themselves in a bond.
- An element is more reactive than another based on the number of valence electrons it has.
- The valence electrons determines how reactive an atom is or would be.
- Elements that requires just one or two electrons to complete their octet would be highly reactive and dire need to find such electron.
- Also, elements with just an electron above the stable configuration will easily want to lose it.
- Elements with a complete configuration will not be reactive.
The valence electrons are the electrons in the outer most shell of an atom used in chemical bonding.
learn more:
Reactivity brainly.com/question/6496202
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Answer:
The response of medication on the Atenolo, 50 mg will reduce the hypertension.
It decrease the cardiac output of heart and helps in decreasing the systolic and diastolic pressure.
This will decrease the hypertension. It is a type of beta 1 androgenic blocker which decreases the cardiac output.
It may cause bradycardia but will not cause tachycardia.
Explanation:
covalent bond poor thermal conductivity
molecular compounds
metallic bond ductile
electron sea model
ionic bond crystalline
hard and brittle
Covalent compounds have the following properties:
- Gases and volatile liquids or low melting point solids
- Often insoluble in polar solvents
- Mainly non - conductors
- Have slow reactions
Metallic compounds:
- Have good malleability, ductility, electrical and thermal conductivity.
- A large sea of electron by jointly packed atoms.
- They are mostly in metals
- Accounts for the bulk of the physical properties displayed by metals
Ionic compounds:
- High melting and boiling point
- Soluble in polar liquids
- Conducts electricity in molten or aqueous forms.
- Mostly crystalline solids
- Usually hard and brittle
- Undergoes fast chemical reactions
learn more:
Covalent bonds brainly.com/question/5258547
Ionic bond brainly.com/question/6071838
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