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
Anna007 [38]
4 years ago
12

A monatomic ion has a charge of +2. The nucleus of the parent atom has a mass number of 55. If the number of neutrons in the nuc

leus is 1.2 times that of the number of protons, what is the name and symbol of the element?
Chemistry
1 answer:
sp2606 [1]4 years ago
3 0

Answer:

Manganese  is the name and symbol of the element is Mn.

Explanation:

Charge of the mono-atomic ion = 2+

Atomic mass of the nucleus = 55

Atomic mass =Number of protons + Number of neutrons

Given that :

Number of neutrons = 1.2 (Number of protons)

n = 1.2 × p

55= p+1.2P

p = 25

Atomic number is equal to Number of total protons in the nucleus.

The atomic number of an element is 25 which Manganese with symbol 'Mn'.

You might be interested in
When you put the lid on the simmering soup, the inside of the lid gets all wet. Identify the change of state of the inside of th
gavmur [86]

Answer:

The soup gets so hot it releases a gas state and it gets trapped in the lid. So the gas gets transformed into a gas into a liquid temperarily.

Explanation:

5 0
3 years ago
How many moles of He are in 16 g of the element? 1.0 mol 4.0 mol 8.0 mol 16 mol
Lady bird [3.3K]

Answer: 4 Mole

Explanation:

16/4 = 4

4 0
4 years ago
g The difference between an ionic bond and a covalent bond is that Select one: a. ionic bonds commonly occur between two metals
Bond [772]

Answer:

C) Covalent bonds come about because of a sharing of electrons; ionic bonds do not.

Explanation:

There are two main types of chemical bonds- covalent and ionic/electrovalent bonds.

Ionic bond: Ionic or electrovalent bonds are characterized by the transfer of electrons from electropositive atoms (metals) to electronegative atoms (non-metals). The metal atoms after donating their electrons become positively charged ions (cations) while the non-metal atoms after accepting electrons become negatively charged ions (anions). Strong electrostatic forces of attraction constitutes ionic bonds.

Covalent bond: Covalent bonds are formed by the sharing of electrons by the atoms involved in the bond; usually between atoms of comparable electronegativities or atoms of the same element. The shared electrons are contributed by each of the atoms involved in the bonding or may be contributed by only one of the atoms. In covalent bonding, molecules rather than ions are formed.

8 0
3 years ago
How could getting so much food from<br> the ocean negatively impact marine<br> ecosystems?
kumpel [21]
Marine food chains at risk of collapse, extensive study of world's oceans finds. ... The acidification of the ocean, where the pH of water drops as it absorbs carbon dioxide, will make it hard for creatures such as coral, oysters and mussels to form the shells and structures that sustain them.
7 0
3 years ago
Which process is constructive?
dalvyx [7]
C.
It is the only thing that is making a new thing, and not breaking or taking apart something that is already there.
4 0
3 years ago
Other questions:
  • 1.)Which of these statements correctly compares probeware (such as an electronic temperature probe) to traditional analog tools
    12·2 answers
  • [50 PTS] show does the arrangement of elements on the periodic table relate to their chemical properties?
    13·1 answer
  • A water sample is found to contain 59 ppm
    9·1 answer
  • Ammonia (NH3) boils at -33∘C; at this temperature it has a density of 0.81 g/cm3. The enthalpy of formation of NH3(g) is -46.2 k
    11·1 answer
  • One mole of liquid water at 100°C is heated until the liquid is converted entirely to vapor at 100°C and 1 bar pressure. Calcula
    5·1 answer
  • Two isotopes of a certain element have binding energies that differ by 3.8580 MeV. The isotope with the larger binding energy co
    8·1 answer
  • What happens during midwinter when the North Pole is tilted away from the Sun? A) There is no night. B) The days are very long.
    5·1 answer
  • Which statement describes the relative masses of two different particles?
    10·1 answer
  • A quantity of 1.922 g of methanol (CH3OH) was burned in a constant-volume bomb calorimeter. Consequently, the temperature rose b
    9·1 answer
  • Which TWO of the following options are TRUE about atomic mass and mass number?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!