Question 10
Use the words from the box to complete the descriptions about hydrogen and covalent bonds. You may use some words more than once.
Words: ion; metal; molecule; non-metal; one; two; three; four.
The hydrogen atom has ____ outer electron. The hydrogen atom forms covalent bonds with other ____ atoms. One hydrogen atom shares ____ electron with other atoms to obtain a stable electronic configuration. In a hydrogen ____, two hydrogen atoms combine to obtain a stable electronic configuration as shown in the dot-and-cross diagram below.
One carbon atom forms ____ covalent bonds with ____ hydrogen atoms to obtain a stable electronic configuration.
One nitrogen atom forms ____ covalent bonds with ____ hydrogen atoms to obtain a stable electronic configuration.
One oxygen atom forms ____ covalent bonds with ____ hydrogen atoms to obtain a stable electronic configuration.
Words: ion; metal; molecule; non-metal; one; two; three; four.
The hydrogen atom has ____ outer electron. The hydrogen atom forms covalent bonds with other ____ atoms. One hydrogen atom shares ____ electron with other atoms to obtain a stable electronic configuration. In a hydrogen ____, two hydrogen atoms combine to obtain a stable electronic configuration as shown in the dot-and-cross diagram below.
One carbon atom forms ____ covalent bonds with ____ hydrogen atoms to obtain a stable electronic configuration.
One nitrogen atom forms ____ covalent bonds with ____ hydrogen atoms to obtain a stable electronic configuration.
One oxygen atom forms ____ covalent bonds with ____ hydrogen atoms to obtain a stable electronic configuration.
