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
hjlf
2 years ago
12

As the atoms of the elements from atomic

Chemistry
1 answer:
In-s [12.5K]2 years ago
7 0

Answer:

smaller, greater

Explanation:

Moving from left to right in the periodic table, we notice that the magnitude of nuclear charge increases with increasing atomic number.

Recall that across the period, nuclear charge increases without a corresponding increase in the number of shells hence the size of the atom (atomic radius) contracts due to a greater pull of the nuclear charge on the electrons.

You might be interested in
Consider this reaction mechanism: Step 1: Mo(CO)6→ Mo(CO)5 + CO Step 2: Mo(CO)5 + P(CH3)3→ Mo(CO)5P(CH3)3 Which of these is an i
Alja [10]

Answer:

Mo(CO)5 is the intermediate in this reaction mechanism.

Explanation:

The reaction mechanism describes the sequence of elementary reactions that must occur to go from reactants to products. Reaction intermediates are formed in one step and then consumed in a later step of the reaction mechanism.

In this reaction mechanism, Mo(CO)5 is the product of 1st reaction and then it is used as a reactant in 2nd reaction. So, Mo(CO)5 is the reaction intermediates.

The overall balanced equation would be,

Mo(CO)6 + P(CH3) ↔ CO + Mo(CO)5 +  P(CH3)3

4 0
3 years ago
Given 2.0 moles of nitrogen and plenty of hydrogen, how many moles of NH3 are formed?
kolezko [41]
3.0 moles


Rjdjfjfjfjfhfj
3 0
3 years ago
If the ph of a solution is 6.2 what would the poh be
horsena [70]
PH + poH = 14
6.2 +poH = 14
poH = 7.8
7 0
3 years ago
Read 2 more answers
For the following questions, use a periodic table and your atomic calculations to find the unknown information about each isotop
mafiozo [28]

Answer:

Option B is correct.

4

Explanation:

We know that an atom consist of electron, protons and neutrons. Protons and neutrons are present with in nucleus while the electrons are present out side the nucleus.

All these three subatomic particles construct an atom. A neutral atom have equal number of proton and electron. In other words we can say that negative and positive charges are equal in magnitude and cancel the each other. For example, if neutral atom has 6 protons than it must have 6 electrons. The sum of neutrons and protons is the mass number of an atom while the number of protons are number of electrons is the atomic number of an atom.

In given problem we are given with 2 neutrons of helium. We know that the atomic number of He is 2. Thus Mass number of He is,

Number of neutrons + number of proton

2 + 2 = 4

Thus, option B is correct.

7 0
3 years ago
Which is always the first step in dealing with an accident in the lab?
marin [14]
The answer is the letter C
3 0
3 years ago
Read 2 more answers
Other questions:
  • 25 POINTS! Which traits are characteristic of both single-celled and multicellular organisms? Choose all answers that are correc
    10·2 answers
  • Electronic configuration of the element aluminum
    7·1 answer
  • Calculate the number of moles of NaCl contained in 0.500L of a 1.5M solution
    15·1 answer
  • Explain evaporation. have a chapter test tommarow !
    12·2 answers
  • Is 4Si2H3 + 11O2=8SiO2+6H2O balanced
    5·1 answer
  • Natalie is a secretary and must complete a large amount of filing this afternoon. At 1:00 PM, the office receptionist gets sick
    15·2 answers
  • Question 2 (Multiple Choice Worth 2 points)
    6·1 answer
  • nter your answer in the provided box. Nitric acid (HNO3) is used in the production of fertilizer, dyes, drugs, and explosives. C
    8·1 answer
  • Which of the following best describes a single-replacement reaction?
    8·1 answer
  • Structure of potassium trioxalatoaluminate(iii)?​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!