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Lynna [10]
3 years ago
12

What does the atomic number of an element specify? what does the atomic number of an element specify?

Chemistry
1 answer:
GREYUIT [131]3 years ago
8 0
The atomic number of an element identifies the number of protons and electrons.
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Which element has higher ionization energy? chlorine or carbon
PtichkaEL [24]

Answer:

chlorine has higher ionization than carbon

Explanation:

Chlorine is only one row below carbon, but it is three columns to the right in this case the IP of chlorine would be predicted to be greater than the IP of carbon.

3 0
4 years ago
The three main groups of elements are metals, nonmetals, and
Sedbober [7]

Answer:

Metalloids

Explanation:

.... .....................

4 0
3 years ago
Whats a chemical change
Salsk061 [2.6K]

chemical changes occur when a substance combines with another to form a new substance called chemical synthesis or alternatively chemical decomposition into two or more different substances these processes are called chemical reactions and in general are not reversible except by further chemical reactions

5 0
3 years ago
What is the approximate percent by mass of oxygen in C2H4O2
kherson [118]

Answer:

Approximately 53.3  %.

Explanation:

Molar mass of C2H4O2

= 2 * 12.011 + 4 * 1.008 + 2 * 15.999

=  60.052

% oxygen = (31.998* 100) / 60.052 = 53.28 %

6 0
3 years ago
17. D i don’t know if i’m writing it wrong or don’t know how to balance but ye
leva [86]

Answer:

2 KL + Pb(NO3)2 = 2 KNO3 + PbL2

Explanation:

KL + Pb(NO3)2 = KNO3 + PbL2 is unballanced equation, just balance from there :)

8 0
3 years ago
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