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Romashka-Z-Leto [24]
3 years ago
7

This element has an atomic number smaller than magnesium and 3 electrons in its valence shell

Chemistry
1 answer:
OverLord2011 [107]3 years ago
6 0

Boron (B) is your answer.

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What type of bond is between sodium and oxygen​
Greeley [361]

Answer:

Ionic

Explanation:

Sodium is Metal, Oxygen is Non-metal. Non-metals and metals are automatic Ionic bonds

3 0
3 years ago
Read 2 more answers
A flask with a volume of 250.0 mL contains air with a density of 1.164 g/L. What is the mass of the air contained in the flask?
satela [25.4K]

Answer:

convert 250.0 mL in Liters :250. 0 / 1000 = 0,25 LDensity = 1.240 g/LMass

Explanation:

6 0
2 years ago
How is an electrons energy related to its position in an atom?
balu736 [363]

Answer: The amount of energy needed to move an electron from one zone to another is a fixed, finite amount. The electron with its extra packet of energy becomes excited, and promptly moves out of its lower energy level and takes up a position in a higher energy level.

Explanation:

6 0
3 years ago
Calculate the mass of grams of 14.79ml of a substance. It'd density is 1.193gml
Alisiya [41]
<span>D=m/v

Given:
d=1.193g/ml
v= 14.79ml

Solution
m=dv
m=1.193g/ml x 14.79ml

m= 17.644g

Density is the mass per volume of the material. Basically, it refers to the measurement of how crammed together is the matter. The formula to calculate density is rho = m/v wherein rho is the density, m stands for the mass and v stands for the volume.</span>
8 0
3 years ago
The temperature reading of –14°C corresponds to a Kelvin reading of:
Sedaia [141]
The corrects answer is 259 K
3 0
3 years ago
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