"Main group elements that are non-metals usually <em>gain</em> one or more electrons to form <em>anions</em>, which have a <em>negative</em> charge."
Explanation
Non-metal elements- all of which are in the main group in block <em>p</em>- are on the right hand side of a modern periodic table. Depending on their group number, they contain between one to four less electrons than the next noble gas element in their valence shells but in most cases over four electrons away from the noble gas in the last period.
Non-metal elements would thus by the octet rule prefer to gain one or more electrons to form a complete valence shell. It takes less energy for them to achieve a noble gas electron configuration by gaining electrons than losing ones.
Electrons are negatively-charged. An atom would acquire a negative charge after gaining extra electrons as it becomes ionized.
- Positively-charged ions are known as <em>cations;</em>
- Negatively-charged ions are called <em>anions.</em>
The non-metal atom would thus form an anion after gaining extra electrons.
Answer:
Bird eating worm: The bird gains energy from eating its proteins.
Plant recieving sunlight: The plant gains energy from the sunlight and transfers it into sugar and energy for it to continue its cycle.
Light bulb attached to battery: The lightbulb gains electricity and power from the battery until it runs out completely.
Where’s the problem I know how to do it
Answer: Attractive forces between particels
Explanation:
I believe it’s false since All living things need nitrogen to make essential molecules like proteins and DNA.