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
Inessa05 [86]
3 years ago
7

How does chemical reactivity of metals vary while moving.

Chemistry
1 answer:
OverLord2011 [107]3 years ago
4 0

Reactivity of metals depends on the tendency to lose electrons. ... As we move down the group, the tendency to gain electrons decreases because as the atomic size increases, the effective nuclear charge decreases.

You might be interested in
For the first ionization energy for an N2 molecule, what molecular orbital is the electron removed from
olga55 [171]

Answer:

p orbital.

Explanation:

Valence electrons are the electrons in an atom holding the very last orbital which is used in chemical bonding with other elements. Their existence could define the chemical properties of that atom.

During the first energy in ionization of an N2 molecule the molecular orbital from which the electron could be extracted is the only one with the highest energy level. Nitrogen has its outermost orbital (p) containing three valence electrons. Each orbital is only half filled, and thus it is unstable Thus, the electron mission must have been removed from p orbital.

7 0
3 years ago
If the gas inside the flask is cooled so that its pressure is reduced from 797.3 torr to a value of 715.7 torr what will be the
nadezda [96]
The differential pressure is
797.9 - 715.7 = 82.2 torr = 138815.25 Pa
The height of the mercury in the open-end arm is calculated using
ΔP = ρgh
The density of mercury is 13560 kg/m3
The height of the mercury is
138815.25 Pa = 13560 kg/m3 (9.81 m/s2) h
h = 1.04 m
4 0
3 years ago
The ____ _____ of an element includes atomic number plus the number of neutrons.
kozerog [31]
The correct answer for this will be 


atomic
mass
6 0
3 years ago
Read 2 more answers
What are things that are made of matter
IgorLugansk [536]

Answer:Matter makes up everything you can see, including clothes, water, food, plants, and animals. It even makes up some things you cannot see, such as air or the smell of perfume. You can describe a type of matter by its MATERIAL PROPERTIES such as its colour or how hard it is.

Explanation:

7 0
3 years ago
Read 2 more answers
Convert 4.57X-3m to the equivalent length in nanometers
siniylev [52]

Answer:

                       4.57 × 10⁶  nanometers  

Explanation:

                    In this problem we are asked to convert between two units i.e. a meter into nanometer. In sciences, the different units are used for a same quantity (achieved by multiplying conversion factors) to get rid of very small values and get a readable and  intelligible values.

For Example:

In given statement the value of small distance is 4.5 × 10⁻³ meter the real number form of this number is 0.00457. Hence, this number can be converted to a very large number by multiplying it with 10⁹ or 1000000000. Hence,

                         4.5 × 10⁻³  × 1.0 × 10⁹  =  4.57 × 10⁶

Or,

                 4.5 × 10⁻³  meters  =  4.57 × 10⁶  nanometers    

Although the quantity is the same for same units but the number has changed.          

4 0
3 years ago
Other questions:
  • QUESTION 21 The combustion of ammonia in the presence of excess oxygen yields NO 2 and H 2O: 4 NH 3 (g) 7 O 2 (g) 4 NO 2 (g) 6 H
    10·1 answer
  • How do chemists use balanced chemical equations
    7·1 answer
  • 6. 100 ml of gaseous hydrocarbon consumes 300
    14·1 answer
  • A crystal is a solid (or liquid) in which the constituent atoms, molecules, or ions are packed to have a ________________ as wel
    15·2 answers
  • What statement is true about the eight elements on the periodic table termed metalloids?
    8·2 answers
  • List three properties you would expect the metal zinc to have
    8·2 answers
  • Can you make 10
    9·2 answers
  • Directions
    6·2 answers
  • A cube of an unknown metal measures 0.200 cm on one side. The mass of the cube is 52 mg. Which of the following is most likely t
    12·1 answer
  • Using the equation 40kJ+2SO3(g)-->2SO2(g) + O2(g), if pressure is added what way
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!