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Flashcards do conjunto (13)
- 1What is an atom?Atoms are the building blocks. Atoms are neutral with no overall charge.
- 2What is the charge of an atom and why?No overall charge because the number of positive charge is the same as the number of negative charge
- 3What do atoms of a particular element have in common?They are found in the nucleus.
- 4What is an atom made of?Protons,neutrons and electrons
- 5Where does the mass of an atom come from?The mass of an atom comes from the Protons and neutrons in its nucleas
- 6What are bonds?The link between atoms
- 7Which group of atoms tend not to bond and why?Group 18 called the noble and inert gasses.
- 8How do these atoms exist?Single atoms
- 9What happens to atoms as they gain or lose electrons?They become positively charge and negatively charge.
- 10What is valence?The imbalance giving ions a charge.
- 11What are positively charged ions?Have more protons than electron.they form when metal atoms lose their outer shell electrons.
- 12What are negatively charged ion?Have more electrons than protons.they form when atoms of non metals gain electrons
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- FlashCards sobre Sem título, criado por sumaya mohamed em 17-07-2018.
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- sumaya mohamed
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