Fast fast fast
13. an element whose nucleus breaks down is
-plutonium
-oxygen
...
Fast fast fast
13. an element whose nucleus breaks down is
-plutonium
-oxygen
-neon
-allotrope
23. choose all that apply. What [Na]+ forms with [Cl]-
-sodium chloride
-ionic bond
-covalent bond
-table salt
12. the most common element in the human body is what?
-hydrogen
-phosphorus
-calcium
-oxygen
4. what element never combines in nature?
-nitrogen
-hydrogen
-xenon
-carbon
17. all of __ are radioactive and rarely found on nature
-noble gases
-metalloids
-actinides
-alkali metals
2. why is hydrogen grouped with alkali metals?
-it has one electron in its outer energy level
-it is a gas
-it is a Metal
-it does not readily form compounds
Answers: 1
Other questions on the subject: Chemistry
Chemistry, 22.06.2019 00:30, boonkgang6821
The clouds are grey and ground is wet. a quantitative b qualitative
Answers: 1
Chemistry, 22.06.2019 16:00, corcoranrobert1959
How do dying stars contribute to the formation of planets
Answers: 1
Chemistry, 22.06.2019 19:20, evansh78
Consider hydrogen in an excited state n = 5n=5 that emits photons to reach the ground state. there are various possible transitions other than straight to the ground state that can occur; for example, it can drop to the n = 3n=3 state followed by the n = 3n=3 to the ground state transition. which of the possible transitions will result in the emission of a photon in the visible region?
Answers: 3
Do you know the correct answer?
Questions in other subjects:
Mathematics, 16.10.2020 07:01
Mathematics, 16.10.2020 07:01
World Languages, 16.10.2020 07:01
Mathematics, 16.10.2020 07:01
Mathematics, 16.10.2020 07:01
