Answer:
The answer to your question is: letter B.
Explanation:
Carbon atom double-bonded to an oxygen atom C= O,
a) Carbohydrate group this group does not exist
b)Carbonyl group This option is right, carbonyl group is C=O
c) Hydroxyl group This option is incorrect, hydroxyl group is OH, very different from C=O
d) Ketone group Ketone group does not exist, ketones have the same functional group as aldehydes (C=O)
Answer:
B.) a cation that is smaller than the original atom
Explanation:
When the atoms of an element gains or loses electrons, it becomes charged. This charged atom is called an ION. An ion can either be a CATION or ANION depending on whether the atom loses electrons to become positively charged (cation) or gains electrons to become negatively charged (anion).
In this case, magnesium (Mg) atom gives up or loses electron(s) to become an ion, it will become positively charged and hence called a CATION. However, since it loses electrons in its atom, it becomes SMALLER than the original magnesium atom. This is because the electrons left in the atom becomes more attracted to the nucleus and decreases the ionic radius.
Physical damage.
If you burned the pencil, it would be considered chemical.
M = GFM × N
Sodium Oxide
s Na O
v 1 2
s 2 1
d 2 1
f Na2O
Na2O
2 × 23 = 46
1 × 16 = 16
46 + 16 = 62g
GFM = 62g
N = 2.24 moles
M = ?
M = GFM × N
M = 62,2 × 2.24
M = 138.88g
The answer is electrons.The nucleus are consists of neutrons and protons. Neutrons are neutral and protons are positive. So the nucleus are positive and can attract the electrons(negative) to surround it.
