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kenny6666 [7]
3 years ago
5

What is Atomic mass

Chemistry
2 answers:
shutvik [7]3 years ago
8 0

I think it’s , the sum of all protons and neutrons in the atomic nucleus.

Apologize if it’s wrong .

larisa86 [58]3 years ago
6 0
The answer is B. Your welcome.
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Which statement describes why sodium reacts more vigorously than magnesium to hydrochloric acid? Refer to the periodic table. Ci
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Sodium has a lower ionization energy than magnesium describes why sodium reacts vigorously than magnesium chloride.

<h3>Why is sodium more reactive than magnesium?</h3>
  • Sodium is more reactive than magnesium because it has the ability to easily lose electron, hence have lower ionization energy.
  • Sodium belong to group one on the periodic table and they are called akali metal while magnesium belong to group two on the periodic table and they are called alkali Earth metal.

  • Sodium and magnesium belong to the in the 3rd period. Iin the outermost energy level sodium has one electron but magnesium has 2 electrons. Therefore, there is more attraction abetween the nucleus and electrons in magnesium than that of sodium.

Therefore, sodium is more reactive than magnesium chloride because of lower ionization energy.

For more details on sodium reactivity, check the link below.

brainly.com/question/6837593

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2 years ago
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If an element gives away an electron, will it form a positive ion or a negative<br> ion?
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Does anyone know Coulomb’s law??
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the force between charged particles increases when they are in solid form

3 0
3 years ago
PLEASE HELP 30 POINTS PLS PLS
joja [24]
22-yes, they belong to the same group
23- they are metals
24-Atoms of group 1 elements all have one electron in their outer shell. This means Na and K have the same valence electrons.
25-Metals are solids at room temperature, therefore Na and K are solid.
26- mass number=A=235
Protons=z=92
Neutrons=mass number-protons
Neutrons=A-Z
Neutrons=235-92
Neutrons=143
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