Question

An atom has electronic configuratin of 2,7,8 what is the atomic number of this element

Answer 1

Explanation:

尺 ﾌ卂Ꮆ尺ㄩҜ Ꮆ卄ㄖ丂卄丨ㄒ 千丨尺丂ㄒ ㄩᗪㄚㄖᎶ 丨Ҝ丂卄ᐯ卂Ҝㄩ ᗪㄩㄥ卂尺丨 ᐯ丨ᗪ卄丨 卂 乃丨ㄒ ㄒㄖ Ꮆ乇ㄒ 卂 匚卄卂几匚乇 尺7千ㄩㄖ千ㄩ千ㄚҜᗪㄚҜ5 ㄒ卄乇ᗪㄚᗪᎶﾌ乂Ꮆㄩᗪㄚ丨 卄ㄖᎶ丨 ㄒ卄乇 ㄖㄒ卄乇尺 ㄖ几乇 ㄒ卄卂ㄒ ㄚㄖㄩ 卄卂ᐯ乇 ㄒㄖ ᗪㄖ ㄒ卄丨丂 卂几ᗪ

ｲ乇尺んひ乃ひ刀ム ﾉ刀ｲﾌﾑ尺 ﾌﾑム尺ひズ ムんの丂んﾉｲ ｷﾉ尺丂ｲ ひりﾘのム ﾉズ丂ん√ﾑズひ りひﾚﾑ尺ﾉ √ﾉりんﾉ ﾑ 乃ﾉｲ ｲの ム乇ｲ ﾑ ᄃんﾑ刀ᄃ乇 尺7ｷひのｷひｷﾘズりﾘズ5 ｲん乇りﾘりムﾌﾒムひりﾘﾉ んのムﾉ ｲん乇 のｲん乇尺 の刀乇 ｲんﾑｲ ﾘのひ んﾑ√乇 ｲの りの ｲんﾉ丂 ﾑ刀り

Answer 2

17 that is chlorine

17 that is chlorine that is so because 2+8+7=17

17 that is chlorine that is so because 2+8+7=17 therefore electronic configuration is 17