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
Novosadov [1.4K]
3 years ago
6

An atom nucleus contains 28 protons and the atom has a mass number of 60. how many neutrons does this atom contain? how many ele

ctrons? what is the identity of the atom?
Chemistry
1 answer:
wlad13 [49]3 years ago
7 0
Number of neutrons = mass number - proton number = 60- 28 = 32
electrons = proton number for a neutral atom = 28
the identity of the atom is written as
60
. X
28
You might be interested in
A gas occupies a volume of 1.00 L at 25.0°C. What volume will the gas occupy at 1.00 x10^2 °C?
Leno4ka [110]

Answer : The volume of gas occupy at 1.00\times 10^2^oC is, 1.25 L

Explanation :

Charles' Law : It states that volume of the gas is directly proportional to the temperature of the gas at constant pressure and number of moles.

Mathematically,

\frac{V_1}{T_1}=\frac{V_2}{T_2}

where,

V_1\text{ and }T_1 are the initial volume and temperature of the gas.

V_2\text{ and }T_2 are the final volume and temperature of the gas.

We are given:

V_1=1.00L\\T_1=25.0^oC=(25.0+273)K=298K\\V_2=?\\T_2=1.00\times 10^2^oC=((1.00\times 10^2)+273)K=373K

Putting values in above equation, we get:

\frac{1.00L}{298K}=\frac{V_2}{373K}\\\\V_2=1.25L

Therefore, the volume of gas occupy at 1.00\times 10^2^oC is, 1.25 L

3 0
3 years ago
Why do solids expand on heating?
sdas [7]

Explanation:

The molecules of solids are shrinked in there normal state . but as a heat energy is produced , the molecules starts curating fast and fast as temperature goes up . since they vibrate , they hit and collide each other breaking the bondings this increases the surface of area of the solid , and molecules consumes that space and they expand .

5 0
3 years ago
The ions in most ionic compounds are organized into a
Igoryamba
They are organized into crystals hope i helped
5 0
3 years ago
Whose work directly resulted in the development of an atomic model that has negative electrons stuck within a sea of positive ma
miskamm [114]

Answer: Thomson

Explanation: It verified J. J. Thomson's work on the atomic structure.

3 0
3 years ago
Read 2 more answers
Science quiz question #9
11111nata11111 [884]

Answer: I would say its either exit door or the last one.

Explanation: Hope this helps plz mark brainliest.

3 0
3 years ago
Other questions:
  • Which statement is true about BF3, a nonpolar molecule? It has nonpolar bonds and a symmetrical structure. It has nonpolar bonds
    8·2 answers
  • What describes the change in oxidation states of the following reaction
    12·1 answer
  • The Canby’s dropwort grows in wetlands in Georgia. It is an endangered plant because wetlands have been cleared for agriculture
    10·2 answers
  • Why does hydrochloric acid have a higher boiling point than diatomic fluorine? The stabilizing effect of dipole interactions in
    14·2 answers
  • If the neutral atom of an element has only 4 valence electrons it must be in which group? 1. IVB 2. VA 3. VIIA 4. VIA 5. IVA 6.
    8·1 answer
  • Magnesium reacts with oxygen gas to form magnesium oxide. Which of the following represents the balanced chemical equation?
    9·2 answers
  • What will happen if pressure is increased on the system?
    7·1 answer
  • ASAP!!!
    10·1 answer
  • How many grams are in 0.39 moles of water
    7·1 answer
  • How many grams of Al2O3are present in 7.1 x 10^22 molecules of Al2O3?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!