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
Zinaida [17]
3 years ago
7

3. Once magnesium (Mg) gives up electron(s) to become an ion, it will become

Chemistry
1 answer:
xeze [42]3 years ago
5 0

Answer:

Option B. Cation that is smaller than the original atom.

Explanation:

Magnesium is a divalent element. This implies that magnesium can give up 2 electrons to become an ion (cation) as shown below:

Mg —> Mg²⁺ + 2e¯

Next, we shall write the electronic configuration of magnesium atom (Mg) and magnesium ion (Mg²⁺). This can be written as follow:

Mg (12) = 2, 8, 2

Mg²⁺ (10) = 2, 8

From the above illustration, we can see that the magnesium atom (Mg) has 3 shells while the magnesium ion (Mg²⁺) has 2 shells.

This simply means that the magnesium ion (Mg²⁺) i.e cation is smaller that the original magnesium atom (Mg).

You might be interested in
What are the representative elements usually called
antiseptic1488 [7]

Answer:

There are two sets of groups in the periodic table. The first set are Group A elements and are also known as representative elements. The second set are Group B elements and are also known as transition metals. Representative elements are the most abundant elements on earth.

4 0
2 years ago
Can someone please help me please?
vekshin1

Answer:

The sum of the molar masses of each isotope of the element.

7 0
2 years ago
Read 2 more answers
How much heat is required, in calories, to raise the temperature of 57.8 g of silver from
Stella [2.4K]

Answer:

87.3 calories of heat is required.

Explanation:

Heat = mcΔT

m= mass, c = specific heat of silver, T = temperature

H= 57.8 g * 0.057 cal/g°C * ( 43.5 - 17 °C)

H = 57.8 * 0.057 * 26.5

H = 87.3069 cal.

The heat required to raise the temperature of 57.8 g of silver from 17 °C to 43.5 °C is 87.3 calories.

8 0
2 years ago
Calculate the volume of 0.684mol of carbon dioxide at s.t.p. show working
solong [7]

Answer: The volume of 0.684 mol of carbon dioxide at s.t.p. is 15.3 L

Explanation:

According to ideal gas equation:

PV=nRT

P = pressure of gas = 1 atm (at STP)

V = Volume of gas = ?

n = number of moles = 0.684

R = gas constant = 0.0821Latm/Kmol

T =temperature =273K   (at STP)

V=\frac{nRT}{P}

V=\frac{0.684\times 0.0821L atm/K mol\times 273K}{1atm}

V=15.3L

Thus the volume of 0.684 mol of carbon dioxide at s.t.p. is 15.3 L

6 0
3 years ago
What molecules have 5 carbon atoms and 12 hydrogen atoms
goldfiish [28.3K]

ANSWER

THE PENTANES

EXPLANATION

he word for5 in Greek is PENT like the 5 sided and 5 angled building in Wachington the PENTagon.

SO C5H12 IS PENTAND BECAUSE IT HAS NO DOUBLE BONDAS IT IS AN ALKANE

SO SO C5H12 IS PENT-ANE    PENTANE AND THERE ARE MULTIPLE FORMS OF IT

4 0
2 years ago
Other questions:
  • Assume the cup of tea has cooled off faster than the pot of tea. In which liquid would the molecules be moving faster and in whi
    11·2 answers
  • How many grams of CO2 will be produced from 12.0 g of CH4 and 133 g of O2 ?
    7·1 answer
  • Lead is listed below zinc in the activity series.
    15·2 answers
  • There are several different insecticides sold at your local home and garden store. They all claim to be safe for use around anim
    7·1 answer
  • I’m not sure how to do this, please help. It’s a mole to mole stoich worksheet.
    13·1 answer
  • Please help me! U will get a 30 points!
    12·1 answer
  • Chemistry, 50 points!!! Will also mark brainliest if you answer everything
    15·1 answer
  • A chemical change takes place when
    11·2 answers
  • Which of the following processes is involved in the formation of sedimentary rocks?
    9·2 answers
  • Which statement best describes how the scientific community analyzes data?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!