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Romashka-Z-Leto [24]
3 years ago
11

Which element melts at room temperature?

Chemistry
2 answers:
daser333 [38]3 years ago
6 0
A melting element at room temperature consist of francium.

~Evie

just olya [345]3 years ago
4 0
Francium is an element that melts at room temperature. Francium is a highly reactive element, and only contains one valence electron, which is very ironic in my opinion. 
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Which scientist arranged the elements in order of increasing atomic number, rather than increasing atomic mass?
pentagon [3]

Answer:

Henry Moseley

Explanation:

Dmitry Mendeleef and Lothar Meyer proposed a periodic table based on the atomic mass.

They stated a periodic law expressed as "chemical properties of elements are a periodic function of their atomic weights".

But, Henry Moseley in 1900s re-stated periodic law by changing the basis of the law from atomic weight to atomic number.

The present periodic law is stated as "the properties of elements are a periodic function of their atomic number".

6 0
2 years ago
How does the electro negativity difference between atoms determine the type of bond they will form
siniylev [52]

The absolute value of the difference in electronegativity (ΔEN) of two bonded atoms provides a rough measure of the polarity to be expected in the bond and, thus, the bond type. When the difference is very small or zero, the bond is covalent and nonpolar. When it is large, the bond is polar covalent or ionic.

4 0
3 years ago
The RNA and DNA backbone differ because the DNA sugar is missing what element?
hammer [34]

Answer:

D.

Explanation:

4 0
2 years ago
What's the net force acting on an 18-kg object if an acceleration of 3.0 m/s2 is produced? A. 12 N B. 6 N C. 54 N D. 36 N
ASHA 777 [7]
Im sure the answer is c

6 0
3 years ago
Read 2 more answers
If 0.959J of heat is added to 0.88g of water, how much will its temperature increase
ss7ja [257]

Answer:

0.260 Celsius

Explanation:

q =c x m x (T2-T1)

c - specific heat of water 4.186 J/g.C

T2-T1 = q /(c x m) = 0.959 /(4.186 x 0.88) = 0.959/3.68 =0.260 C

7 0
2 years ago
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