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
Karolina [17]
3 years ago
5

Give the chemical symbol of an element in the third period (row) of the periodic table with two 3s electrons and no 3p electrons

.

Chemistry
1 answer:
lidiya [134]3 years ago
3 0

Answer:

Mg  

Explanation:

The element in the third row with two 3s electrons and no 3p electrons is magnesium — Mg.

You might be interested in
Given bh3, o3, co2, and nh3, which of these compound is an exception to the octet rules?.
Ghella [55]

Answer:

a. BH₃

Explanation:

According to the octet rules, atoms reach stability when are surrounded by eight electrons in their valence shell when they combine to form a chemical compound.

From the options, the only compound in which the central atom does not meet the octet rules is BH₃. The central atom is boron (B), which has 3 electrons in its valence shell. When B is combined with hydrogen (H), 3 electrons from the 3 atoms of H are added. The total amount of electrons is 6, fewer than 8 electrons needed to meet the rule.

hope this helps

5 0
2 years ago
A gas occupies 56 L at 73°C. What volume will the gas occupy if the temp. cools to 0°C?
vova2212 [387]

Answer:

44.2 L

Explanation:

Use Charles Law:

\frac{V1}{T1} =\frac{V2}{T2}

We have all the values except for V₂; this is what we're solving for. Input the values:

\frac{56 L}{346K} =\frac{V2}{273K}   -  make sure that your temperature is in Kelvin

From here, we need to get V₂ by itself. To do this, multiply by 273 on both sides:

\frac{56*273}{346} = V2

Therefore, V₂ = 44.2 L

It's also helpful to know that temperature and volume are linearly related. So, when temperature drops, so will volume and vice versa.

7 0
3 years ago
What is the equations that decompose hydrogen peroxide
Rufina [12.5K]
2H2O2 decomposes into the products 2H2O + O2(g)
5 0
3 years ago
Which is more dense? A foam ball or a bowling ball?
STatiana [176]
A bowling ball.
definition of dense-closely compacted in substance
6 0
3 years ago
Which is a possible result of rising ocean temperatures caused by global warming?
goldfiish [28.3K]
Pretty sure it’s 2, increase in strength of hurricanes
3 0
3 years ago
Other questions:
  • 1. Something must have mass in order to create change.
    12·1 answer
  • Competition is likely to occur between which two organisms?
    8·1 answer
  • a proton is placed next to a negatively charged object in which direction does a proton move explain why
    14·2 answers
  • The balanced chemical equation for the reaction between PCl5 and water is given below. If 3.45 moles of HCl are produced, how ma
    8·1 answer
  • Explain why solid sodium chloride does not conduct electricity
    15·1 answer
  • What is the number “4” in SiCl4? a subscript a coefficient a product a reactant
    7·2 answers
  • What is the difference between a halogen and a halide?<br><br> need help urgently!
    15·2 answers
  • Which is not a part of the Nervous System?
    9·1 answer
  • 1. Which phase change is accompanied by the release of heat? A) H20(s)--&gt; H2O(g) B) H20(l) -&gt;H2O(s) C) H20(l)→ H2O(g) D) H
    12·1 answer
  • Cambiar dos meses a segundos
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!