subject
Chemistry, 23.11.2020 23:20 bedsaul12345

need help on this! Your friend, who has been studying asteroids, has encountered an element they cannot identify. This element has several unique characteristics. It is a brittle solid at room temperature and not very reactive. After experimenting on the element, they were able to determine that the atomic mass was at least 30 and no higher than 33. The element also has valence electrons in the third energy level. Looking at the periodic table below, answer the following questions in CER format: What could be the identity of this element? There is more than one correct answer.

ansver
Answers: 3

Another question on Chemistry

question
Chemistry, 22.06.2019 17:30
To find the enthalpy of a reaction in the lab, you measured the of the reactants and the change during the reaction.
Answers: 1
question
Chemistry, 22.06.2019 23:00
What is the formula of the ionic compound composed of calcium cations and chloride anions
Answers: 1
question
Chemistry, 23.06.2019 06:00
Amanda pushes a box across the room with a force of 30 n. it accelerates at 5 m/s/s. what is the mass of the box? * 6 kg 1.16 kg 30 kg 5kg
Answers: 2
question
Chemistry, 23.06.2019 07:00
Scuba divers use tanks of compressed air to them breathe. gases can be compressed because?
Answers: 1
You know the right answer?
need help on this! Your friend, who has been studying asteroids, has encountered an element they can...
Questions
question
Arts, 05.05.2020 11:40
question
Mathematics, 05.05.2020 11:40
question
Mathematics, 05.05.2020 11:40
question
Mathematics, 05.05.2020 11:41
Questions on the website: 13722362